Back out matrix strategy

This is covered in Trident E2E (and was having problems anyway)

.ci/azure-pipelines.yml

@@ -19,10 +19,6 @@ jobs:
     name: AKSDeployment
     vmImage: 'GpuSelfHostedAgent'
 
-  strategy:
-    maxParallel: 1
-    matrix: {"eastus": {"azureregion": "eastus", "azureresourcegroup" : "aksdplyamleastus", "workspacename" : "aksamleastusws"},"southcentralus": {"azureregion": "southcentralus", "azureresourcegroup" : "aksdplyamlsouthctrl", "workspacename" : "aksamlsthctrlusws" },"westus2": {"azureregion": "westus2", "azureresourcegroup" : "aksdplyamlwestus", "workspacename" : "aksamlwestus2ws"}}
-
   steps:
   - script: echo Hello, AKSDeployment!
     displayName: 'Builds source for AKSDeploymentTutorialAML/Keras_Tensorflow'