patch 8.2.5090: MS-Windows: vim.def is no longer used

Problem:    MS-Windows: vim.def is no longer used.
Solution:   Delete vim.def. (Ken Takata, closes #10569)
diff --git a/src/version.c b/src/version.c
index aa1319c..9373f60 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5090,
+/**/
     5089,
 /**/
     5088,