PS: Cleanup a few manually generated models.

powershell/ql/lib/semmle/code/powershell/frameworks/Microsoft.Win32.RegistryKey.model.yml

@@ -1,8 +0,0 @@
-extensions:
-  - addsTo:
-      pack: microsoft/powershell-all
-      extensible: sourceModel
-    data:
-      - ["microsoft.win32.registrykey	", "Method[GetValue].ReturnValue", "windows-registry"]
-      - ["microsoft.win32.registrykey	", "Method[GetValueNames].ReturnValue", "windows-registry"]
-      - ["microsoft.win32.registrykey	", "Method[GetSubKeyNames].ReturnValue", "windows-registry"]

powershell/ql/lib/semmle/code/powershell/frameworks/System.Management.Automation.Language.model.yml

@@ -1,6 +0,0 @@
-extensions:
-  - addsTo:
-      pack: microsoft/powershell-all
-      extensible: summaryModel
-    data:
-    - ["system.management.automation.language.codegeneration!", "Method[escapesinglequotedstringcontent]", "Argument[0]", "ReturnValue", "taint"]

powershell/ql/lib/semmle/code/powershell/frameworks/System.Management.model.yml

@@ -1,4 +1,10 @@
 extensions:
+  - addsTo:
+      pack: microsoft/powershell-all
+      extensible: summaryModel
+    data:
+    - ["system.management.automation.language.codegeneration!", "Method[escapesinglequotedstringcontent]", "Argument[0]", "ReturnValue", "taint"]
+
   - addsTo:
       pack: microsoft/powershell-all
       extensible: sinkModel