[shisan (qiutongMS)]

Reverts #564

Because there are few errors when we test the sample after this PR merged

##[error]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(129,49): Error CS0103: The name 'ModelCatalogSource' does not exist in the current context
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(129,49): error CS0103: The name 'ModelCatalogSource' does not exist in the current context [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]
##[error]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(131,17): Error CS0246: The type or namespace name 'ModelCatalog' could not be found (are you missing a using directive or an assembly reference?)
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(131,17): error CS0246: The type or namespace name 'ModelCatalog' could not be found (are you missing a using directive or an assembly reference?) [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]
##[error]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(131,49): Error CS0246: The type or namespace name 'ModelCatalog' could not be found (are you missing a using directive or an assembly reference?)
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(131,49): error CS0246: The type or namespace name 'ModelCatalog' could not be found (are you missing a using directive or an assembly reference?) [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]
##[warning]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(136,17): Warning CS8305: 'Microsoft.Windows.AI.MachineLearning.CatalogModelInfo' is for evaluation purposes only and is subject to change or removal in future updates.
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(136,17): warning CS8305: 'Microsoft.Windows.AI.MachineLearning.CatalogModelInfo' is for evaluation purposes only and is subject to change or removal in future updates. [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]
##[error]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(145,67): Error CS1061: 'CatalogModelInfo' does not contain a definition for 'GetInstanceAsync' and no accessible extension method 'GetInstanceAsync' accepting a first argument of type 'CatalogModelInfo' could be found (are you missing a using directive or an assembly reference?)
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(145,67): error CS1061: 'CatalogModelInfo' does not contain a definition for 'GetInstanceAsync' and no accessible extension method 'GetInstanceAsync' accepting a first argument of type 'CatalogModelInfo' could be found (are you missing a using directive or an assembly reference?) [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]
##[error]WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(153,62): Error CS0103: The name 'CatalogModelInstanceStatus' does not exist in the current context
C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\Shared\cs\ModelManager.cs(153,62): error CS0103: The name 'CatalogModelInstanceStatus' does not exist in the current context [C:\__w\1\s\WindowsAppSDK-Samples\Samples\WindowsML\cs\CSharpConsoleDesktop\CSharpConsoleDesktop\CSharpConsoleDesktop.csproj]