Fix activity lint

Author: jselbo

dexmaker-mockito-inline-extended-tests/src/androidTest/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+        <activity android:name="com.android.dx.mockito.inline.extended.tests.EmptyActivity"
+            android:exported="false" />
+    </application>
+</manifest>

dexmaker-mockito-inline-extended-tests/src/main/AndroidManifest.xml

@@ -3,7 +3,5 @@
     xmlns:tools="http://schemas.android.com/tools">
 
     <application android:debuggable="true"
-        tools:ignore="HardcodedDebugMode">
-        <activity android:name="com.android.dx.mockito.inline.extended.tests.EmptyActivity" />
-    </application>
+        tools:ignore="HardcodedDebugMode" />
 </manifest>