Removed post limit warning banner (#27036)

Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/platform/types/src/limits.ts

@@ -8,7 +8,4 @@ export type LimitsState = {
 export type ServerLimits = {
     activeUserCount: number;
     maxUsersLimit: number;
-
-    maxPostLimit: number;
-    postCount: number;
 };