Remove BRANCH from BuildImage.yml

Set MULTI_ARCH to false, since it's not needed

Author: Some Watson

.github/workflows/BuildImage.yml

@@ -12,11 +12,10 @@ on:
 env:
   GITHUB_REPO: "linuxserver/docker-mods" #don't modify
   ENDPOINT: "linuxserver/mods" #don't modify
-  BRANCH: "code-server-bat" #added
   BASEIMAGE: "code-server" #replaced
   MODNAME: "bat" #replaced
   MOD_VERSION: ${{ inputs.mod_version }} #don't modify
-  MULTI_ARCH: "true" #set to false if not needed
+  MULTI_ARCH: "false" #set to false if not needed
 
 jobs:
   set-vars: