New review comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/30805#discussion_r630472252

Comment:
This whole block can be removed:
1. Patching the Makefiles is probably not necessary, since the only reference is `PREFIX ?= /usr/local`. This is probably only used during install time, and the build style already sets `PREFIX=/usr` for you.
2. If some of the variables (`BINDIR`, `SBINDIR`, `LIBDIR`, `MANDIR` or `SHAREDIR`) in these makefiles are used at build time, then you should just do `make_build_args="PREFIX=/usr"`. Build first without patching or setting this variable and see if any of the products contain references to `/usr/local`. If so, use `make_build_args`.
3. `x2goterminate-desktopsharing` does not need to be patched, since the script uses `type -p` to find `pidof` first, which will do the right thing provided that `pidof` exists.
4. Do not patch the manual pages, they reference possible paths rather than refer incorrectly to `/usr/local`.