perf: speed up

- Lazy load `jenv`, which is causing the most slowdown: jenv/jenv#148 (comment)
- Remove duplicate cw load
- Remove fzf

custom/functions.zsh

@@ -1,5 +1,18 @@
 #!/usr/bin/env zsh
 
+lazy_jenv() {
+  unset -f java jenv
+  eval "$(jenv init -)"
+}
+jenv() {
+  lazy_jenv
+  jenv $@
+}
+java() {
+  lazy_jenv
+  java $@
+}
+
 # Create a new directory and enter it
 function mkd() {
   mkdir -p "$@" && cd "$_" || exit

custom/profile.zsh

@@ -1,8 +1,5 @@
 #!/usr/bin/env zsh
 
-# CodeWhisperer pre block. Keep at the top of this file.
-[[ -f "${HOME}/Library/Application Support/codewhisperer/shell/zshrc.pre.zsh" ]] && builtin source "${HOME}/Library/Application Support/codewhisperer/shell/zshrc.pre.zsh"
-
 # Homebrew completions
 fpath+=~/.zfunc
 if type brew &>/dev/null; then
@@ -12,17 +9,8 @@ if type brew &>/dev/null; then
   compinit
 fi
 
-# fzf init
-[ -f ~/.fzf.zsh ] && source ~/.fzf.zsh
-
-# jenv init
-eval "$(jenv init -)"
-
 # atuin init
 eval "$(atuin init zsh --disable-up-arrow)"
 
 # bun completions
 [ -s "$HOME/.bun/_bun" ] && source "$HOME/.bun/_bun"
-
-# CodeWhisperer post block. Keep at the bottom of this file.
-[[ -f "${HOME}/Library/Application Support/codewhisperer/shell/zshrc.post.zsh" ]] && builtin source "${HOME}/Library/Application Support/codewhisperer/shell/zshrc.post.zsh"