Remove FileSystem runtime flag for chromium

android_webview/lib/main/aw_main_delegate.cc

Index: android_webview/lib/main/aw_main_delegate.cc
diff --git a/android_webview/lib/main/aw_main_delegate.cc b/android_webview/lib/main/aw_main_delegate.cc
index 852081619f39e60952835d7157d8a053060609e0..3c5ca025523a7b2ffdbd1aefbd585681b8df4560 100644
--- a/android_webview/lib/main/aw_main_delegate.cc
+++ b/android_webview/lib/main/aw_main_delegate.cc
@@ -71,9 +71,6 @@ bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
   // Not yet supported in single-process mode.
   cl->AppendSwitch(switches::kDisableSharedWorkers);
 
-  // File system API not supported (requires some new API; internal bug 6930981)
-  cl->AppendSwitch(switches::kDisableFileSystem);
-
   // Web Notification API and the Push API are not supported (crbug.com/434712)
   cl->AppendSwitch(switches::kDisableNotifications);