fix(cli): remove set -e from bin/doom{,script}

This killed the script prematurely (without displaying the error) if
Emacs failed to execute. In versions prior to bash 4, set -e would not
terminate the script if a non-zero exit code occurred within a subshell,
but it will in bash 4+.

In any case, we don't need this fallback to begin with. The script
handles its errors sufficiently otherwise.

bin/doomscript

@@ -16,7 +16,6 @@
 # $BASH_SOURCE to locate it would reduce its POSIX compliance). This shouldn't
 # be an issue for folks writing their own CLIs, however.
 
-set -e
 case "$EMACS" in
     *term*) EMACS=emacs ;;
     *) EMACS="${EMACS:-emacs}" ;;