Remove Dogecoin donation support

Analogous to the server commit that removes it on its side. If an index
includes it, we will fail silently since unrecognised tags are ignored.

SQLite doesn't allow deleting columns, so don't do a DB version bump to try to
remove it. It will be gone on new installs, and it doesn't keep current
installs from working. Tested both cases.

F-Droid/src/org/fdroid/fdroid/AppDetails.java

@@ -1209,13 +1209,6 @@ public class AppDetails extends AppCompatActivity implements ProgressListener, A
             else
                 tv.setVisibility(View.GONE);
 
-            // Dogecoin
-            tv = (TextView) view.findViewById(R.id.dogecoin);
-            if (!TextUtils.isEmpty(getApp().dogecoinAddr))
-                tv.setOnClickListener(mOnClickListener);
-            else
-                tv.setVisibility(View.GONE);
-
             // Flattr
             tv = (TextView) view.findViewById(R.id.flattr);
             if (!TextUtils.isEmpty(getApp().flattrID))
@@ -1306,9 +1299,6 @@ public class AppDetails extends AppCompatActivity implements ProgressListener, A
                     case R.id.litecoin:
                         url = "litecoin:" + getApp().litecoinAddr;
                         break;
-                    case R.id.dogecoin:
-                        url = "dogecoin:" + getApp().dogecoinAddr;
-                        break;
                     case R.id.flattr:
                         url = "https://flattr.com/thing/" + getApp().flattrID;
                         break;

F-Droid/src/org/fdroid/fdroid/RepoXMLHandler.java

@@ -196,9 +196,6 @@ public class RepoXMLHandler extends DefaultHandler {
             case "litecoin":
                 curapp.litecoinAddr = str;
                 break;
-            case "dogecoin":
-                curapp.dogecoinAddr = str;
-                break;
             case "flattr":
                 curapp.flattrID = str;
                 break;

F-Droid/src/org/fdroid/fdroid/data/App.java

@@ -54,8 +54,6 @@ public class App extends ValueObject implements Comparable<App> {
 
     public String litecoinAddr;
 
-    public String dogecoinAddr;
-
     public String flattrID;
 
     public String upstreamVersion;
@@ -163,9 +161,6 @@ public class App extends ValueObject implements Comparable<App> {
             case AppProvider.DataColumns.LITECOIN_ADDR:
                 litecoinAddr = cursor.getString(i);
                 break;
-            case AppProvider.DataColumns.DOGECOIN_ADDR:
-                dogecoinAddr = cursor.getString(i);
-                break;
             case AppProvider.DataColumns.FLATTR_ID:
                 flattrID = cursor.getString(i);
                 break;
@@ -384,7 +379,6 @@ public class App extends ValueObject implements Comparable<App> {
         values.put(AppProvider.DataColumns.DONATE_URL, donateURL);
         values.put(AppProvider.DataColumns.BITCOIN_ADDR, bitcoinAddr);
         values.put(AppProvider.DataColumns.LITECOIN_ADDR, litecoinAddr);
-        values.put(AppProvider.DataColumns.DOGECOIN_ADDR, dogecoinAddr);
         values.put(AppProvider.DataColumns.FLATTR_ID, flattrID);
         values.put(AppProvider.DataColumns.ADDED, Utils.formatDate(added, ""));
         values.put(AppProvider.DataColumns.LAST_UPDATED, Utils.formatDate(lastUpdated, ""));

F-Droid/src/org/fdroid/fdroid/data/AppProvider.java

@@ -188,7 +188,6 @@ public class AppProvider extends FDroidProvider {
         String DONATE_URL = "donateURL";
         String BITCOIN_ADDR = "bitcoinAddr";
         String LITECOIN_ADDR = "litecoinAddr";
-        String DOGECOIN_ADDR = "dogecoinAddr";
         String FLATTR_ID = "flattrID";
         String SUGGESTED_VERSION_CODE = "suggestedVercode";
         String UPSTREAM_VERSION = "upstreamVersion";
@@ -215,7 +214,7 @@ public class AppProvider extends FDroidProvider {
         String[] ALL = {
                 _ID, IS_COMPATIBLE, APP_ID, NAME, SUMMARY, ICON, DESCRIPTION,
                 LICENSE, WEB_URL, TRACKER_URL, SOURCE_URL, CHANGELOG_URL, DONATE_URL,
-                BITCOIN_ADDR, LITECOIN_ADDR, DOGECOIN_ADDR, FLATTR_ID,
+                BITCOIN_ADDR, LITECOIN_ADDR, FLATTR_ID,
                 UPSTREAM_VERSION, UPSTREAM_VERSION_CODE, ADDED, LAST_UPDATED,
                 CATEGORIES, ANTI_FEATURES, REQUIREMENTS, IGNORE_ALLUPDATES,
                 IGNORE_THISUPDATE, ICON_URL, ICON_URL_LARGE,

F-Droid/src/org/fdroid/fdroid/data/DBHelper.java

@@ -79,7 +79,6 @@ public class DBHelper extends SQLiteOpenHelper {
             + "donateURL string,"
             + "bitcoinAddr string,"
             + "litecoinAddr string,"
-            + "dogecoinAddr string,"
             + "flattrID string,"
             + "requirements string,"
             + "categories string,"