ci: delete homebrew deploy files (#630)

Removes homebrew deploy files, since I am no longer maintaining it on my own. I had already disabled it from the deploy process a while ago, but forgot to delete these files.

deployment/macos/homebrew/bottom.rb.template

@@ -1,32 +0,0 @@
-class Bottom < Formula
-    desc "A cross-platform graphical process/system monitor with a customizable interface and a multitude of features."
-    homepage "https://github.com/ClementTsang/bottom"
-    version "$version"
-    if OS.mac?
-      url "https://github.com/ClementTsang/bottom/releases/download/#{version}/bottom_x86_64-apple-darwin.tar.gz"
-      sha256 "$hash1"
-    elsif OS.linux?
-      url "https://github.com/ClementTsang/bottom/releases/download/#{version}/bottom_x86_64-unknown-linux-musl.tar.gz"
-      sha256 "$hash2"
-    end
-  
-    def install
-      bash_completion.install "completion/btm.bash"
-      zsh_completion.install "completion/_btm"
-      fish_completion.install "completion/btm.fish"
-      bin.install "btm"
-      ohai "You're done!  Run with \"btm\""
-      ohai "For runtime flags, see \"btm --help\""
-      ohai "If you want to configure bottom, by default bottom looks for a file in $HOME/Library/Application Support/bottom.toml or $HOME/.config/bottom/bottom.toml"
-    end
-
-    def caveats
-      <<~EOS
-        Note that bottom might require elevated privileges to correctly display information for all processes. You
-        probably won't need it though, there are built-in methods to avoid this need.
-        If you find you really do need it, you can do this with `sudo btm`.
-        You should be certain that you trust any software you grant root privileges.
-      EOS
-    end 
-  end
-