Allow deleting comment with content via API like web did (#35346) (#35354)

Backport #35346 by @lunny

Fix #35296

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

routers/api/v1/repo/issue_comment.go

@@ -721,8 +721,8 @@ func deleteIssueComment(ctx *context.APIContext) {
 	if !ctx.IsSigned || (ctx.Doer.ID != comment.PosterID && !ctx.Repo.CanWriteIssuesOrPulls(comment.Issue.IsPull)) {
 		ctx.Status(http.StatusForbidden)
 		return
-	} else if comment.Type != issues_model.CommentTypeComment {
-		ctx.Status(http.StatusNoContent)
+	} else if !comment.Type.HasContentSupport() {
+		ctx.Status(http.StatusBadRequest)
 		return
 	}