delete applicationIdSuffix

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/build.gradle

@@ -78,10 +78,6 @@ android {
     }
 
     buildTypes {
-        debug {
-            applicationIdSuffix '.debug'
-        }
-
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'