widening: remove "depth" argument since it's always None

Differential Revision: https://phab.mercurial-scm.org/D7097

hgext/narrow/narrowbundle2.py

@@ -121,15 +121,10 b' def generate_ellipses_bundle2_for_wideni'
     version,
     common,
     known,
-    depth,
 ):
     newmatch = narrowspec.match(
         repo.root, include=newinclude, exclude=newexclude
     )
-    if depth is not None:
-        depth = int(depth)
-        if depth < 1:
-            raise error.Abort(_(b'depth must be positive, got %d') % depth)
 
     common = set(common or [nullid])
     # Steps:
@@ -173,7 +168,7 b' def generate_ellipses_bundle2_for_wideni'
             repo,
             matcher=newmatch,
             ellipses=True,
-            shallow=depth is not None,
+            shallow=False,
             ellipsisroots=newellipsis,
             fullnodes=newfull,
         )

hgext/narrow/narrowwirepeer.py

@@ -130,7 +130,6 b' def narrow_widen('
                 cgversion,
                 common,
                 known,
-                None,
             )
     except error.Abort as exc:
         bundler = bundle2.bundle20(repo.ui)