Utils: Don't expose FilePath::mapToGlobalPath anymore

The indirection is triggered via scheme and host. And if it already is in
that form we do not need to add these information.

Change-Id: I13c2bd0864a956c5cdaa5e2e6b324bb7f67c93e3
Reviewed-by: David Schulz <david.schulz@qt.io>

src/libs/utils/filepath.h

@@ -162,8 +162,6 @@ public:
                           QDir::Filters filters = QDir::NoFilter,
                           QDirIterator::IteratorFlags flags = QDirIterator::NoIteratorFlags) const;
 
-    [[nodiscard]] FilePath mapToGlobalPath() const;
-
     // makes sure that capitalization of directories is canonical
     // on Windows and macOS. This is rarely needed.
     [[nodiscard]] FilePath normalizedPathName() const;