Remove unnecessary line from test manifests

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=191409777

extensions/cast/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.ext.cast.test">
     package="com.google.android.exoplayer2.ext.cast.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>

extensions/cronet/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.ext.cronet">
     package="com.google.android.exoplayer2.ext.cronet">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>

library/core/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.core.test">
     package="com.google.android.exoplayer2.core.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>

library/dash/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.source.dash.test">
     package="com.google.android.exoplayer2.source.dash.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="25"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="25"/>

library/hls/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.source.hls.test">
     package="com.google.android.exoplayer2.source.hls.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>

library/smoothstreaming/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.source.smoothstreaming.test">
     package="com.google.android.exoplayer2.source.smoothstreaming.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>

testutils/src/test/AndroidManifest.xml

@@ -15,7 +15,6 @@
 -->
 -->
 
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     package="com.google.android.exoplayer2.testutil.test">
     package="com.google.android.exoplayer2.testutil.test">
 
 
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>
   <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="26"/>