Update build.yml

Author: wopian

.github/workflows/build.yml

@@ -1,14 +1,6 @@
 name: Build
 
-on:
-  push:
-  pull_request:
-    # Branches from forks have the form 'user:branch-name' so we only run
-    # this job on pull_request events for branches that look like fork
-    # branches. Without this we would end up running this job twice for non
-    # forked PRs, once for the push and then once for opening the PR.
-    branches:
-    - '**:**'
+on: [push, pull_request]
 
 jobs:
   build: