Follow-up to review feedback in https://bugs.webkit.org/show_bug.cgi?id=237394 and https://bugs.webkit.org/show_bug.cgi?id=243874. Currently, copy-xpc-services-to-secondary-path.sh is a script phase used by multiple WebKit targets. It doesn't emit dependency information (so it runs needlessly) and it appears to be fully implementable as a native Copy Files phase (with EXCLUDED_SOURCE_FILE_NAMES-based filtering). Doing this would reduce redundant script execution and clean up this part of the WebKit xcodeproj.
<rdar://problem/98908987>