Remove spurious `tools` schema.
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools"
package="com.google.firebase">
<!--Although the *SdkVersion is captured in gradle build files, this is required for non gradle builds-->
<!--<uses-sdk android:minSdkVersion="14"/>-->
