VS: Remove C++ module CompileAs flag table entries for v142 and v143

The `CompileAs` entry in a `.vcxproj` file with values:

* `CompileAsCppModule` for `-interface`
* `CompileAsCppModuleInternalPartition` for `-internalPartition`
* `CompileAsHeaderUnit` for `-exportHeader`

does not cause the corresponding flag to be added to the command line.
Drop the flag table entries so that the flags go to `AdditionalOptions`.

Fixes: #22477

Templates/MSBuild/FlagTables/v142_CL.json

@@ -663,27 +663,6 @@
     "value": "CompileAsCpp",
     "flags": []
   },
-  {
-    "name": "CompileAs",
-    "switch": "interface",
-    "comment": "Compile as C++ Module Code",
-    "value": "CompileAsCppModule",
-    "flags": []
-  },
-  {
-    "name": "CompileAs",
-    "switch": "internalPartition",
-    "comment": "Compile as C++ Module Internal Partition",
-    "value": "CompileAsCppModuleInternalPartition",
-    "flags": []
-  },
-  {
-    "name": "CompileAs",
-    "switch": "exportHeader",
-    "comment": "Compile as C++ Header Unit",
-    "value": "CompileAsHeaderUnit",
-    "flags": []
-  },
   {
     "name": "ErrorReporting",
     "switch": "errorReport:none",

Templates/MSBuild/FlagTables/v143_CL.json

@@ -658,27 +658,6 @@
     "value": "CompileAsCpp",
     "flags": []
   },
-  {
-    "name": "CompileAs",
-    "switch": "interface",
-    "comment": "Compile as C++ Module Code",
-    "value": "CompileAsCppModule",
-    "flags": []
-  },
-  {
-    "name": "CompileAs",
-    "switch": "internalPartition",
-    "comment": "Compile as C++ Module Internal Partition",
-    "value": "CompileAsCppModuleInternalPartition",
-    "flags": []
-  },
-  {
-    "name": "CompileAs",
-    "switch": "exportHeader",
-    "comment": "Compile as C++ Header Unit",
-    "value": "CompileAsHeaderUnit",
-    "flags": []
-  },
   {
     "name": "ErrorReporting",
     "switch": "errorReport:none",