Remove broken test coverage

This never worked properly with the Gitlab UI. Now it's even more broken
since we run the tests in different jobs.

.gitlab-ci.yml

@@ -42,7 +42,6 @@ connectedCheck:
         echo "read $log here:";
         cat "$log" | curl --silent -F 'clbin=<-' https://clbin.com;
       done
-    - sed -n 's/.*"ctr2">\([0-9]*\)%<.*/Coverage - \1.0% covered\n/p' app/build/reports/coverage/debug/index.html
     # this file changes every time but should not be cached
     - rm -f $GRADLE_USER_HOME/caches/modules-2/modules-2.lock
     - exit $EXITVALUE

app/build.gradle

@@ -139,9 +139,6 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro', 'src/androidTest/proguard-rules.pro'
         }
-        debug {
-            testCoverageEnabled = true
-        }
     }
 
     compileOptions {