CONFIG: do not touch LD_PRELOAD contents at all (#1357)

etc/config.csh/setup

@@ -122,7 +122,7 @@ end
 # Clean standard environment variables (PATH, MANPATH, LD_LIBRARY_PATH)
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 # Prevent local variables from shadowing setenv variables
-unset PATH MANPATH LD_LIBRARY_PATH LD_PRELOAD
+unset PATH MANPATH LD_LIBRARY_PATH
 if (! $?LD_LIBRARY_PATH ) setenv LD_LIBRARY_PATH
 if (! $?MANPATH ) setenv MANPATH
 
@@ -167,10 +167,6 @@ if ( $?MANPATH ) then
     setenv MANPATH "${MANPATH}:"
 endif
 
-if ( $?LD_PRELOAD ) then
-    _foamClean LD_PRELOAD
-endif
-
 
 # Cleanup temporary information
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

etc/config.sh/setup

@@ -153,12 +153,6 @@ then
     MANPATH="${MANPATH}:"
 fi
 
-if [ -n "$LD_PRELOAD" ]
-then
-    export LD_PRELOAD
-    _foamClean LD_PRELOAD
-fi
-
 
 # Cleanup temporary information
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

etc/config.sh/unset

@@ -147,7 +147,6 @@ then
 fi
 
 [ -n "$LD_LIBRARY_PATH" ] || unset LD_LIBRARY_PATH
-[ -n "$LD_PRELOAD" ] || unset LD_PRELOAD
 [ -n "$MANPATH" ] || unset MANPATH
 
 #------------------------------------------------------------------------------