homebrew: Cleanup homebrew aliases

- 'brew upgrade' does 'brew update' by default, no need for explicit call
- replace 'brew remove' with 'brew uninstall' for consistency

modules/homebrew/init.zsh

@@ -31,8 +31,8 @@ alias brewi='brew install'
 alias brewl='brew list'
 alias brewo='brew outdated'
 alias brews='brew search'
-alias brewu='brew update && brew upgrade'
-alias brewx='brew remove'
+alias brewu='brew upgrade'
+alias brewx='brew uninstall'
 
 # Homebrew Cask
 alias cask='brew cask'