patch 8.2.1814: missing change to remove "static"

Problem:    Missing change to remove "static".
Solution:   Add the change.
diff --git a/src/evalvars.c b/src/evalvars.c
index fdc6f45..f7ee58d 100644
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -2653,7 +2653,7 @@
 /*
  * Get the script-local hashtab.  NULL if not in a script context.
  */
-    static hashtab_T *
+    hashtab_T *
 get_script_local_ht(void)
 {
     scid_T sid = current_sctx.sc_sid;