Minor updates to clean up the gradle

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/build.gradle

@@ -26,9 +26,6 @@ android {
     dataBinding {
         enabled = true
     }
-    testOptions {
-        unitTests.returnDefaultValues = true
-    }
 
 }