Distribution specific patch, not going upstream

This workaround for Gentoo interferes with our use of --no-compile during
the 'install stage.

diff --git a/setup.py b/setup.py
index e254bf99c..90db55c3f 100755
--- a/setup.py
+++ b/setup.py
@@ -663,8 +663,6 @@ if modules_ENABLED:
 # Utility methods for building with Cython
 
 def add_cython_ext(*args, **kwargs):
-    if "--no-compile" in sys.argv and not ("build" in sys.argv and "install" in sys.argv):
-        return
     if not cython_ENABLED:
         raise ValueError(f"cannot build {args}: cython compilation is disabled")
     if cython_tracing_ENABLED:
@@ -1809,9 +1807,6 @@ else:
             if root_prefix.endswith("/usr"):
                 #ie: "/" or "/usr/src/rpmbuild/BUILDROOT/xpra-0.18.0-0.20160513r12573.fc23.x86_64/"
                 root_prefix = root_prefix[:-4]
-            for x in sys.argv:
-                if x.startswith("--root="):
-                    root_prefix = x[len("--root="):]
             print(f"install_data_override.run() root_</td></tr></table>
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