Avoid setting TMPDIR and make sure all modules handle that properly

Fixes #1206

runcoms/zprofile

@@ -61,16 +61,3 @@ export LESS='-F -g -i -M -R -S -w -X -z-4'
 if (( $#commands[(i)lesspipe(|.sh)] )); then
   export LESSOPEN="| /usr/bin/env $commands[(i)lesspipe(|.sh)] %s 2>&-"
 fi
-
-#
-# Temporary Files
-#
-#
-# Set TMPDIR if the variable is not set/empty or the directory doesn't exist
-if [[ -z "${TMPDIR}" ]]; then
-  export TMPDIR="/tmp/zsh-${UID}"
-fi
-
-if [[ ! -d "${TMPDIR}" ]]; then
-  mkdir -m 700 "${TMPDIR}"
-fi

runcoms/zshenv

@@ -6,6 +6,6 @@
 #
 
 # Ensure that a non-login, non-interactive shell has a defined environment.
-if [[ ( "$SHLVL" -eq 1 && ! -o LOGIN || -z "${TMPDIR}" ) && -s "${ZDOTDIR:-$HOME}/.zprofile" ]]; then
+if [[ ( "$SHLVL" -eq 1 && ! -o LOGIN ) && -s "${ZDOTDIR:-$HOME}/.zprofile" ]]; then
   source "${ZDOTDIR:-$HOME}/.zprofile"
 fi