Projucer: Fix VST3 and LV2 manifest helper paths in Xcode when using relative module paths

Even without this change the helpers would build correctly, but Xcode
would be unable to open them in the GUI and present them in red letters.

extras/Projucer/Source/ProjectSaving/jucer_ProjectExport_Xcode.h

@@ -2220,7 +2220,7 @@ private:
                 && project.getEnabledModules().isModuleEnabled ("juce_audio_plugin_client"))
             {
                 const auto path = rebaseFromProjectFolderToBuildTarget (getLV2HelperProgramSource());
-                addFile (FileOptions().withRelativePath ({ expandPath (path.toUnixStyle()), path.getRoot() })
+                addFile (FileOptions().withRelativePath ({ path.toUnixStyle(), path.getRoot() })
                                       .withSkipPCHEnabled (true)
                                       .withCompilationEnabled (true)
                                       .withInhibitWarningsEnabled (true)
@@ -2232,7 +2232,7 @@ private:
                 && project.getEnabledModules().isModuleEnabled ("juce_audio_plugin_client"))
             {
                 const auto path = rebaseFromProjectFolderToBuildTarget (getVST3HelperProgramSource());
-                addFile (FileOptions().withRelativePath ({ expandPath (path.toUnixStyle()), path.getRoot() })
+                addFile (FileOptions().withRelativePath ({ path.toUnixStyle(), path.getRoot() })
                                       .withSkipPCHEnabled (true)
                                       .withCompilationEnabled (true)
                                       .withInhibitWarningsEnabled (true)