[Win] Remove unused RenderThemeWin, PopupMenuWin and SearchPopupMenuWin classes Windows port is using RenderThemeAdwaita and WebPopupMenuProxyWin instead.
Pull request: https://github.com/WebKit/WebKit/pull/14435
Committed 264642@main (6a23b54c9e23): <https://commits.webkit.org/264642@main> Reviewed commits have been landed. Closing PR #14435 and removing active labels.
<rdar://problem/109953028>