endeavoru: Remove ro.vendor.extension_library

That's a QCOM thing and causes exception like
    E/AndroidRuntime( 2407): java.lang.UnsatisfiedLinkError: Native method not found: com.android.internal.app.ActivityTrigger.native_at_startActivity:(Ljava/lang/String;)V
and preventing a successful boot.

Change-Id: I048d674397e4c4960fa975fedc8eff6154fd61ee