Fix rendering error for the bash prompt on alacritty

dotfiles/bash_prompt

@@ -1,8 +1,3 @@
-# set a fancy prompt (non-color, unless we know we "want" color)
-case "$TERM" in
-    xterm-color|*-256color) color_prompt=yes;;
-esac
-
 function __set_prompt() {
     local branch
     branch=$(git branch --show-current 2>/dev/null)
@@ -23,12 +18,6 @@ function __set_prompt() {
     fi
 }
 
-if [ "$color_prompt" = yes ]; then
 PROMPT_COMMAND=__set_prompt
-else
-    PS1='\w\$ '
-fi
-
-unset color_prompt
 
 printf '\033[3 q'