C#: Clear possibly inherited Directory.Build.props and Directory.Build.targets in stub generator

Author: tamasvajk

csharp/scripts/stubs/helpers.py

@@ -77,6 +77,14 @@ def __init__(self, thisScript, relativeWorkDir, template):
                          self.projectNameIn, '--output', self.projectDirIn])
         remove_files(self.projectDirIn, '.cs')
 
+        # Clear possibly inherited Directory.Build.props and Directory.Build.targets:
+        with open(os.path.join(self.workDir, 'Directory.Build.props'), 'w') as f:
+            f.write('<Project>\n')
+            f.write('</Project>\n')
+        with open(os.path.join(self.workDir, 'Directory.Build.targets'), 'w') as f:
+            f.write('<Project>\n')
+            f.write('</Project>\n')
+
     def run_cmd(self, cmd, msg="Failed to run command"):
         run_cmd_cwd(cmd, self.workDir, msg)