-Removed Leak Canary dependency.

-Fixed local playlist header margins.

app/src/debug/java/org/schabi/newpipe/DebugApp.java

@@ -4,7 +4,6 @@ import android.content.Context;
 import android.support.multidex.MultiDex;
 
 import com.facebook.stetho.Stetho;
-import com.squareup.leakcanary.LeakCanary;
 
 public class DebugApp extends App {
     private static final String TAG = DebugApp.class.toString();
@@ -18,14 +17,6 @@ public class DebugApp extends App {
     @Override
     public void onCreate() {
         super.onCreate();
-
-        if (LeakCanary.isInAnalyzerProcess(this)) {
-            // This process is dedicated to LeakCanary for heap analysis.
-            // You should not init your app in this process.
-            return;
-        }
-        LeakCanary.install(this);
-
         initStetho();
     }