VS: Revert "Add missing label in C# project-build events"

Revert commit b284a21fee (VS: Add missing label in C# project-build
events, 2021-09-03, v3.22.0-rc1~156^2).  The change broke cases using
multiple successful custom commands.  Revert it pending further
investigation into the interaction of the generated script code with
`Microsoft.Common.CurrentVersion.targets`, and whether this is needed
for all managed projects or just C# projects.

Also add a test covering the case that was broken.

Fixes: #22964
Issue: #21440

1 files changed, 2 insertions, 2 deletions

diff --git a/Source/cmLocalVisualStudio7Generator.cxx b/Source/cmLocalVisualStudio7Generator.cxx
index 5d3e11a..96dda53 100644
--- a/Source/cmLocalVisualStudio7Generator.cxx
+++ b/Source/cmLocalVisualStudio7Generator.cxx
@@ -567,7 +567,7 @@ public:
     } else {
       this->Stream << this->LG->EscapeForXML("\n");
     }
-    std::string script = this->LG->ConstructScript(ccg, unmanaged);
+    std::string script = this->LG->ConstructScript(ccg);
     this->Stream << this->LG->EscapeForXML(script);
   }
 
@@ -1780,7 +1780,7 @@ void cmLocalVisualStudio7Generator::WriteCustomRule(
     }
 
     std::string comment = this->ConstructComment(ccg);
-    std::string script = this->ConstructScript(ccg, unmanaged);
+    std::string script = this->ConstructScript(ccg);
     if (this->FortranProject) {
       cmSystemTools::ReplaceString(script, "$(Configuration)", config);
     }