Fixed compilation warnings: tsrm_ls is not used here (anymore?)

Author: indeyets

ext/standard/exec.c

@@ -268,8 +268,6 @@ PHPAPI char *php_escape_shell_cmd(char *str)
 char *cmd;
 char *p = NULL;
 size_t estimate = (2 * l) + 1;
-
-TSRMLS_FETCH();
 
 cmd = safe_emalloc(2, l, 1);
 
@@ -358,7 +356,6 @@ PHPAPI char *php_escape_shell_arg(char *str)
 int x, y = 0, l = strlen(str);
 char *cmd;
 size_t estimate = (4 * l) + 3;
-TSRMLS_FETCH();
 
 cmd = safe_emalloc(4, l, 3); /* worst case */