Remove SkipDefaultCheckout parameter (Azure#31150)

Co-authored-by: Ben Broderick Phillips <[email protected]>

Author: azure-sdk

eng/common/pipelines/templates/steps/sparse-checkout.yml

@@ -8,16 +8,12 @@ parameters:
       - Name: $(Build.Repository.Name)
         Commitish: $(Build.SourceVersion)
         WorkingDirectory: $(System.DefaultWorkingDirectory)
-  # NOTE: SkipDefaultCheckout is being deprecated in favor of SkipCheckoutNone
-  - name: SkipDefaultCheckout
-    type: boolean
-    default: false
   - name: SkipCheckoutNone
     type: boolean
     default: false
 
 steps:
-  - ${{ if and(not(parameters.SkipDefaultCheckout), not(parameters.SkipCheckoutNone)) }}:
+  - ${{ if not(parameters.SkipCheckoutNone) }}:
       - checkout: none
 
   - task: PowerShell@2