vim-patch:8.2.1103: Coverity reports an unnecessary NULL check

Problem:    Coverity reports an unnecessary NULL check.
Solution:   Remove the check for NULL.

e707c882b2

Co-authored-by: Bram Moolenaar <Bram@vim.org>

src/nvim/eval.c

@@ -7486,7 +7486,7 @@ void ex_echo(exarg_T *eap)
   const int called_emsg_before = called_emsg;
   evalarg_T evalarg;
 
-  fill_evalarg_from_eap(&evalarg, eap, eap != NULL && eap->skip);
+  fill_evalarg_from_eap(&evalarg, eap, eap->skip);
 
   if (eap->skip) {
     emsg_skip++;