Unused dependencies are removed (#3141)

Part of #3128

app/build.gradle

@@ -19,26 +19,21 @@ dependencies {
 
     // Utils
     implementation 'com.github.nicolas-raoul:Quadtree:ac16ea8035bf07'
-    implementation 'com.google.code.gson:gson:2.8.5'
     implementation 'in.yuvi:http.fluent:1.3'
     implementation 'com.squareup.okhttp3:okhttp:3.12.1'
     implementation 'com.squareup.okio:okio:1.15.0'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
-    implementation 'io.reactivex.rxjava2:rxjava:2.2.3'
     implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
     implementation 'com.jakewharton.rxbinding2:rxbinding-support-v4:2.1.1'
     implementation 'com.jakewharton.rxbinding2:rxbinding-appcompat-v7:2.1.1'
     implementation 'com.jakewharton.rxbinding2:rxbinding-design:2.1.1'
     implementation 'com.facebook.fresco:fresco:1.13.0'
-    implementation 'com.drewnoakes:metadata-extractor:2.11.0'
     implementation 'com.dmitrybrant:wikimedia-android-data-client:0.0.18'
     implementation 'org.apache.commons:commons-lang3:3.8.1'
 
     // UI
     implementation 'fr.avianey.com.viewpagerindicator:library:2.4.1.1@aar'
     implementation 'com.github.chrisbanes:PhotoView:2.0.0'
     implementation 'com.github.pedrovgs:renderers:3.3.3'
-    implementation 'com.mapbox.mapboxsdk:mapbox-android-sdk:6.8.0'
     implementation 'com.mapbox.mapboxsdk:mapbox-android-plugin-localization:0.6.0'
     implementation 'com.github.deano2390:MaterialShowcaseView:1.2.0'
     implementation 'com.dinuscxj:circleprogressbar:1.1.1'
@@ -49,14 +44,12 @@ dependencies {
     // Logging
     implementation 'ch.acra:acra-dialog:5.3.0'
     implementation 'ch.acra:acra-mail:5.3.0'
-    implementation 'com.jakewharton.timber:timber:4.7.1'
     implementation 'org.slf4j:slf4j-api:1.7.25'
     api('com.github.tony19:logback-android-classic:1.1.1-6') {
         exclude group: 'com.google.android', module: 'android'
     }
 
     // Dependency injector
-    implementation "com.google.dagger:dagger:$DAGGER_VERSION"
     implementation "com.google.dagger:dagger-android-support:$DAGGER_VERSION"
     kapt "com.google.dagger:dagger-android-processor:$DAGGER_VERSION"
     kapt "com.google.dagger:dagger-compiler:$DAGGER_VERSION"