makefile: stop setting unused HGEXTDIR variable during osx build
The variable was added in a38ed42cd23c (osx: include chg by default,
2017-03-20), but I can't find any others references to the variable in
that commit or in any other commits.
Differential Revision: https://phab.mercurial-scm.org/D8915
--- a/Makefile Thu Aug 06 13:51:43 2020 +0530
+++ b/Makefile Fri Aug 07 21:59:43 2020 -0700
@@ -234,7 +234,6 @@
make -C contrib/chg \
HGPATH=/usr/local/bin/hg \
PYTHON=/usr/bin/python2.7 \
- HGEXTDIR=/Library/Python/2.7/site-packages/hgext \
DESTDIR=../../build/mercurial \
PREFIX=/usr/local \
clean install