[v8.x backport] build: fix rm commands in tarball rule

The $(RM) {foo,bar,baz} rules don't seem to work with GNU make 4.1. Write them out in full and get rid of a few overlong lines in the process.

PR-URL: https://github.com/nodejs/node/pull/18332 Reviewed-By: James M Snell jasnell@gmail.com Reviewed-By: Colin Ihrig cjihrig@gmail.com Reviewed-By: Joyee Cheung joyeec9h3@gmail.com Reviewed-By: Richard Lau riclau@uk.ibm.com Reviewed-By: Jon Moss me@jonathanmoss.me

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines