remove all unused imports

This reduces the number of warnings so that we can see the useful ones!

src/org/fdroid/fdroid/AppFilter.java

@@ -18,9 +18,6 @@
 
 package org.fdroid.fdroid;
 
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 import org.fdroid.fdroid.data.App;
 
 public class AppFilter {

src/org/fdroid/fdroid/Preferences.java

@@ -2,7 +2,6 @@ package org.fdroid.fdroid;
 
 import java.util.*;
 
-import android.app.LoaderManager;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;

src/org/fdroid/fdroid/Utils.java

@@ -26,7 +26,6 @@ import android.util.DisplayMetrics;
 import android.util.Log;
 import com.nostra13.universalimageloader.utils.StorageUtils;
 
-import java.io.BufferedReader;
 import java.io.Closeable;
 import java.io.File;
 import java.io.FileReader;
@@ -39,8 +38,6 @@ import java.text.SimpleDateFormat;
 import java.security.MessageDigest;
 import java.util.*;
 
-import org.fdroid.fdroid.data.Repo;
-
 public final class Utils {
 
     public static final int BUFFER_SIZE = 4096;

src/org/fdroid/fdroid/compat/ClipboardCompat.java

@@ -4,10 +4,6 @@ import android.annotation.TargetApi;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
-import android.widget.CompoundButton;
-import android.widget.Switch;
-import android.widget.ToggleButton;
-import org.fdroid.fdroid.ManageRepo;
 
 public abstract class ClipboardCompat extends Compatibility {
 

src/org/fdroid/fdroid/compat/SupportedArchitectures.java

@@ -4,7 +4,6 @@ import java.util.Set;
 import java.util.HashSet;
 
 import android.annotation.TargetApi;
-import android.util.Log;
 import android.os.Build;
 
 public class SupportedArchitectures extends Compatibility {

src/org/fdroid/fdroid/compat/SwitchCompat.java

@@ -2,7 +2,6 @@ package org.fdroid.fdroid.compat;
 
 import android.annotation.TargetApi;
 import android.content.Context;
-import android.os.Build;
 import android.widget.CompoundButton;
 import android.widget.Switch;
 import android.widget.ToggleButton;

src/org/fdroid/fdroid/data/DBHelper.java

@@ -2,11 +2,9 @@ package org.fdroid.fdroid.data;
 
 import android.content.ContentValues;
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
-import android.preference.PreferenceManager;
 import android.util.Log;
 import org.fdroid.fdroid.*;
 

src/org/fdroid/fdroid/views/AppListAdapter.java

@@ -5,7 +5,6 @@ import android.content.pm.PackageInfo;
 import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.support.v4.widget.CursorAdapter;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;

src/org/fdroid/fdroid/views/fragments/AppListFragment.java

@@ -1,23 +1,18 @@
 package org.fdroid.fdroid.views.fragments;
 
-import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.support.v4.app.ListFragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
 import android.util.Log;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.AdapterView;
-import android.widget.ListView;
-
 
 import com.nostra13.universalimageloader.core.ImageLoader;
 import com.nostra13.universalimageloader.core.listener.PauseOnScrollListener;

src/org/fdroid/fdroid/views/fragments/CanUpdateAppsFragment.java

@@ -1,10 +1,6 @@
 package org.fdroid.fdroid.views.fragments;
 
-import android.database.Cursor;
 import android.net.Uri;
-import android.os.Bundle;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
 import org.fdroid.fdroid.R;
 import org.fdroid.fdroid.data.AppProvider;
 import org.fdroid.fdroid.views.AppListAdapter;

src/org/fdroid/fdroid/views/fragments/InstalledAppsFragment.java

@@ -1,10 +1,6 @@
 package org.fdroid.fdroid.views.fragments;
 
-import android.database.Cursor;
 import android.net.Uri;
-import android.os.Bundle;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
 import org.fdroid.fdroid.R;
 import org.fdroid.fdroid.data.AppProvider;
 import org.fdroid.fdroid.views.AppListAdapter;

test/src/org/fdroid/fdroid/ApkProviderTest.java

@@ -3,9 +3,9 @@ package org.fdroid.fdroid;
 import android.content.ContentValues;
 import android.database.Cursor;
 import android.net.Uri;
+
 import org.fdroid.fdroid.data.Apk;
 import org.fdroid.fdroid.data.ApkProvider;
-import org.fdroid.fdroid.data.AppProvider;
 import org.fdroid.fdroid.data.RepoProvider;
 import org.fdroid.fdroid.mock.MockApk;
 import org.fdroid.fdroid.mock.MockApp;

test/src/org/fdroid/fdroid/AppProviderTest.java

@@ -2,9 +2,10 @@ package org.fdroid.fdroid;
 
 import android.content.ContentValues;
 import android.database.Cursor;
-import android.net.Uri;
+
 import mock.MockCategoryResources;
 import mock.MockInstallablePackageManager;
+
 import org.fdroid.fdroid.data.ApkProvider;
 import org.fdroid.fdroid.data.App;
 import org.fdroid.fdroid.data.AppProvider;

test/src/org/fdroid/fdroid/TestUtils.java

@@ -2,7 +2,6 @@ package org.fdroid.fdroid;
 
 import android.content.*;
 import android.net.Uri;
-import android.test.mock.MockContentResolver;
 import junit.framework.AssertionFailedError;
 import org.fdroid.fdroid.data.ApkProvider;
 import org.fdroid.fdroid.data.AppProvider;