refactor(ds): match number replace w/ z/OS Files SDK

Signed-off-by: Trae Yelovich <trae.yelovich@broadcom.com>

Author: traeok

packages/vsce/src/api/SshMvsApi.ts

@@ -234,10 +234,7 @@ export class SshMvsApi extends SshCommonApi implements MainframeInteraction.IMvs
             .toUpperCase()
             .replace(/[^A-Z0-9@#$]/g, "");
 
-        // Ensure it starts with a valid character (letter or national)
-        if (memberName.length > 0 && /^[0-9]/.test(memberName)) {
-            memberName = "$" + memberName;
-        }
+        memberName = memberName.replace(/[\d]/gy, "");
 
         // Truncate to 8 characters max
         memberName = memberName.substring(0, 8);