Revert "gtk+3: use xorgproto [Linux] (#9778)"
Revert "gtk+3: use xorgproto [Linux] (#9778)"

This reverts commit 2a0453e82510cba48e0a726d1deb98d2bfc38f3e.

maxim-belkin/homebrew-core,rwhogg/homebrew-core,LinuxbrewTestBot/homebrew-core,Linuxbrew/homebrew-core,rwhogg/homebrew-core,LinuxbrewTestBot/homebrew-core,maxim-belkin/homebrew-core,Linuxbrew/homebrew-core