Revert "qtwebengine: workaround for linker error with gold"

This reverts commit d2013260c0.
Proper fix found.

Change-Id: I382379054a6d5be63187734ebce38a8a0dda1558
Reviewed-by: Mikko Gronoff <mikko.gronoff@qt.io>
(cherry picked from commit 171bb90b5c)

recipes-qt/qt6/gn-utils.inc

@@ -69,7 +69,6 @@ def write_toolchain_file(d, file_path):
         '    current_cpu = "${current_cpu}"\n'
         '    current_os = "linux"\n'
         '    is_clang = false\n'
-        '    use_gold = false\n'
         '  }\n'
         '}\n'
     )