Remove Theme.AppTheme from OssLicensesMenuActivity and OssLicensesActivity

The default theme will be used instead.

Author: MihaiCristianCondrea

app/src/main/AndroidManifest.xml

@@ -64,12 +64,11 @@
 
         <activity
             android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
-            android:exported="false"
-            android:theme="@style/AppTheme" />
+            android:exported="false" />
+
         <activity
             android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
-            android:exported="false"
-            android:theme="@style/AppTheme" />
+            android:exported="false" />
 
         <activity
             android:name=".ui.screens.android.CodeActivity"