patch 8.2.4043: using int for second argument of ga_init2()

Problem:    Using int for second argument of ga_init2().
Solution:   Remove unnessary type cast (int) when using sizeof().
diff --git a/src/spellsuggest.c b/src/spellsuggest.c
index e9f2cd5..b2b4029 100644
--- a/src/spellsuggest.c
+++ b/src/spellsuggest.c
@@ -774,8 +774,8 @@
 
     // Set the info in "*su".
     CLEAR_POINTER(su);
-    ga_init2(&su->su_ga, (int)sizeof(suggest_T), 10);
-    ga_init2(&su->su_sga, (int)sizeof(suggest_T), 10);
+    ga_init2(&su->su_ga, sizeof(suggest_T), 10);
+    ga_init2(&su->su_sga, sizeof(suggest_T), 10);
     if (*badptr == NUL)
 	return;
     hash_init(&su->su_banned);
@@ -2943,7 +2943,7 @@
     check_suggestions(su, &su->su_sga);
     (void)cleanup_suggestions(&su->su_sga, su->su_maxscore, su->su_maxcount);
 
-    ga_init2(&ga, (int)sizeof(suginfo_T), 1);
+    ga_init2(&ga, sizeof(suginfo_T), 1);
     if (ga_grow(&ga, su->su_ga.ga_len + su->su_sga.ga_len) == FAIL)
 	return;