Revert "Update linux-pr-validation.yaml (#146)" (#149)

This reverts commit e1619f9.

Author: Aaronontheweb

build-system/linux-pr-validation.yaml

@@ -10,6 +10,8 @@ name: $(Year:yyyy).$(Month).$(DayOfMonth)$(Rev:.r)
 
 pr:
   autoCancel: true # indicates whether additional pushes to a PR should cancel in-progress runs for the same PR. Defaults to true
+  branches:
+    include: [ dev, master ] # branch names which will trigger a build
 
 jobs:
 - template: azure-pipeline.template.yaml
@@ -19,4 +21,4 @@ jobs:
     scriptFileName: ./build.sh
     scriptArgs: all
     outputDirectory: 'bin/nuget'
-    artifactName: 'nuget_pack-$(Build.BuildId)'
+    artifactName: 'nuget_pack-$(Build.BuildId)'