patch 8.2.4598: profile completion test sometimes fails

Problem:    Profile completion test sometimes fails.
Solution:   Delete the .res file before running tests.

src/testdir/runtest.vim

@@ -410,6 +410,9 @@ else
   endtry
 endif
 
+" Delete the .res file, it may change behavior for completion
+call delete(fnamemodify(g:testname, ':r') .. '.res')
+
 " Locate Test_ functions and execute them.
 redir @q
 silent function /^Test_

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4598,
 /**/
     4597,
 /**/