Remove duplicate WebScopedUserGesture.cpp entry from web.gyp

R=dpranke@chromium.org

Review URL: https://codereview.chromium.org/340563002

git-svn-id: svn://svn.chromium.org/blink/trunk@176350 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/web.gypi

@@ -214,7 +214,6 @@
       'WebRuntimeFeatures.cpp',
       'WebScopedMicrotaskSuppression.cpp',
       'WebScopedUserGesture.cpp',
-      'WebScopedUserGesture.cpp',
       'WebScopedWindowFocusAllowedIndicator.cpp',
       'WebScriptBindings.cpp',
       'WebScriptController.cpp',