chg: remove outdated rule to start test server

This rule is no longer useful because chg daemon may be killed and respawned
per config/environment hash. We can't reliably run a daemon in foreground.

Makefile

@@ -181,7 +181,6 b' osx:'
 	make -C contrib/chg \
 	  HGPATH=/usr/local/bin/hg \
 	  PYTHON=/usr/bin/python2.7 \
-	  HG=/usr/local/bin/hg \
 	  HGEXTDIR=/Library/Python/2.7/site-packages/hgext \
 	  DESTDIR=../../build/mercurial \
 	  PREFIX=/usr/local \

contrib/chg/Makefile

@@ -1,5 +1,3 b''
-HG = $(CURDIR)/../../hg
-
 TARGET = chg
 SRCS = chg.c hgclient.c procutil.c util.c
 OBJS = $(SRCS:.c=.o)
@@ -15,9 +13,6 b' DESTDIR ='
 PREFIX = /usr/local
 MANDIR = $(PREFIX)/share/man/man1
 
-CHGSOCKDIR = /tmp/chg$(shell id -u)
-CHGSOCKNAME = $(CHGSOCKDIR)/server
-
 .PHONY: all
 all: $(TARGET)
 
@@ -36,13 +31,6 b' install: $(TARGET)'
 	install -d "$(DESTDIR)$(MANDIR)"
 	install -m 644 chg.1 "$(DESTDIR)$(MANDIR)"
 
-.PHONY: serve
-serve:
-	[ -d "$(CHGSOCKDIR)" ] || ( umask 077; mkdir "$(CHGSOCKDIR)" )
-	"$(HG)" serve --cwd / --cmdserver chgunix \
-		--address $(CHGSOCKNAME) \
-		--config cmdserver.log=/dev/stderr
-
 .PHONY: clean
 clean:
 	$(RM) $(OBJS)