Remove FLASHLIGHT permission

This permissions is not protecting access to the flashlight.
Anyone can use the latter via CameraManager.setTorchMode().

bug:26383626

Change-Id: I44c6395b5a0f80c1c539cffe61715b29b401a775
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 5251b20..d6309a5 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -874,6 +874,11 @@
         android:protectionLevel="normal"
         android:permissionFlags="hidden"/>
 
+    <!-- @hide We need to keep this around for backwards compatibility -->
+    <permission android:name="android.permission.FLASHLIGHT"
+        android:protectionLevel="normal"
+        android:permissionFlags="hidden"/>
+
     <!-- ====================================================================== -->
     <!-- INSTALL PERMISSIONS                                                    -->
     <!-- ====================================================================== -->
@@ -1179,14 +1184,6 @@
         android:description="@string/permdesc_vibrate"
         android:protectionLevel="normal" />
 
-    <!-- Allows access to the flashlight.
-         <p>Protection level: normal
-    -->
-    <permission android:name="android.permission.FLASHLIGHT"
-        android:label="@string/permlab_flashlight"
-        android:description="@string/permdesc_flashlight"
-        android:protectionLevel="normal" />
-
     <!-- Allows using PowerManager WakeLocks to keep processor from sleeping or screen
          from dimming.
          <p>Protection level: normal