[EWK_REFACTOR] Remove unused RenderWidgetHostViewEfl::ResizeCompositingSurface
RenderWidgetHostView::ResizeCompositingSurface has been removed in
chromium by https://codereview.chromium.org/
256713002 So we don't need
to implement it anymore.
Original patch: http://165.213.202.130/gerrit/#/c/76169
Bug: http://web.sec.samsung.net/bugzilla/show_bug.cgi?id=12028
Reviewed by: Piotr Grad, SeungSeop Park
Change-Id: Iaafcb313a266c5e29871631d6e0115ec1dd635b7
Signed-off-by: hh4813.kim <hh4813.kim@samsung.com>