Revert "[ts] Add ProductListing#count() params argument (MONEI#485)"

This reverts commit 6bc6f3a.

Author: lpinca

README.md

@@ -532,7 +532,7 @@ This feature is only available on version 2.24.0 and above.
   - `list(productId[, params])`
   - `update(productId, id, params)`
 - productListing
-  - `count([params])`
+  - `count()`
   - `create(productId[, params])`
   - `delete(productId)`
   - `get(productId)`

index.d.ts

@@ -545,7 +545,7 @@ declare class Shopify {
     ) => Promise<Shopify.IProductImage>;
   };
   productListing: {
-    count: (params?: any) => Promise<number>;
+    count: () => Promise<number>;
     create: (
       productId: number,
       params: any