Removed meta data elements from AndroidManifest.xml
Meta-data elements are only needed for versions lower than 4.1. As we don't support Android 4.1 there is no need for these meta-data elements.
Source:
This is what I found on StackOverflow https://stackoverflow.com/questions/14891032/androidparentactivityname-doesnt-work-although-android-support-v4-jar-is-inclu
So that meta-data tag is needed because parentActivityName was introduced in API 16 (Android 4.1) & the parentActivityName equivalent before API 16 was
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.dwaik.actionbar.MainActivity" />
Therefore it is of no use as we only support devices above API 21.