Remove redundant code related to toolbar styling

android/app/src/main/java/com/reactnativenavigation/activities/BottomTabActivity.java

         }
     }
 
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        boolean ret = super.onCreateOptionsMenu(menu);
-        mToolbar.handleOnCreateOptionsMenuAsync();
-        return ret;
-    }
-
     @Override
     public void push(Screen screen) {
         super.push(screen);

android/app/src/main/java/com/reactnativenavigation/activities/SingleScreenActivity.java

     }
 
     protected void setupToolbar(Screen screen) {
-        mToolbar.update(screen);
         StyleHelper.updateStyles(mToolbar, screen);
     }
 

android/app/src/main/java/com/reactnativenavigation/utils/StyleHelper.java

         try {
             toolBar.updateAndSetButtons(screen);
             setWindowStyle(screen);
-            toolBar.setupToolbarButtonsAsync(screen);
         } catch (Exception e) {
             Log.w("RNNavigation", "Tried to update styles with no screen!");
         }