Do not enforce -e TERMCMD args and fix TERMMODE

Enforcing -e break some possibilities to use TERMCMD that dont use it.

TERMCMD should be setup in xinit. This way, in ssh mode, the value still
is empty. This way, some custom bash or tmux config could use
it, configuring it.

configs/appcfg/xinit_template

@@ -52,6 +52,8 @@ command -v firefox && export BROWSER=firefox
 #(useful for getting notifications)
 #export SXMO_RTCWAKEINTERVAL=300
 
+export TERMCMD="st -e"
+
 # Immediately turn the screen off when locking the device
 export SXMO_LOCK_SCREEN_OFF=1
 

scripts/core/sxmo_terminal.sh

@@ -1,17 +1,7 @@
 #!/usr/bin/env sh
 
-# You can export a different terminal in your xinit
+# shellcheck disable=SC2086
-TERMCMD="${TERMCMD:-st}"
+set -- $TERMCMD "$@"
-TERMMODE=$([ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && echo "true")
-
-if [ "$TERMMODE" = "true" ]; then
-	while [ "-e" != "$1" ] || [ 0 -eq $# ]; do
-		shift
-	done
-	shift
-else
-	set -- "$TERMCMD" -e "$@"
-fi
 
 if [ -z "$*" ]; then
 	echo "sxmo_terminal.sh called in TERMMODE without any arguments (returning, nothing to do)" >&2