gitweb: remove "test" and "test-installed" targets

Remove the special "test" targets for gitweb added in
958a846721 (gitweb/Makefile: Add 'test' and 'test-installed' targets,
2010-09-26). Unlike e.g. "contrib/scalar" and "contrib/subtree" the
"gitweb" tests themselves live in our top-level t/ directory.

It therefore doesn't make sense to maintain this indirection, no more
than it would to have a "git-send-email-test". By dropping it we'll
also free other tests to use the t95*.sh prefix.

These removed targets are unlikely to be used by anyone, and to the
extent that they are we can easily use an invocation like this
instead:

	make test T='t[0-9]*gitweb*.sh'

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

gitweb/Makefile

@@ -183,17 +183,6 @@ $(MAK_DIR_GITWEB)static/gitweb.js: $(addprefix $(MAK_DIR_GITWEB),$(GITWEB_JSLIB_
 	cat $^ >$@+ && \
 	mv $@+ $@
 
-### Testing rules
-
-.PHONY: test
-test:
-	$(MAKE) -C ../t gitweb-test
-
-.PHONY: test-installed
-test-installed:
-	GITWEB_TEST_INSTALLED='$(DESTDIR_SQ)$(gitwebdir_SQ)' \
-		$(MAKE) -C ../t gitweb-test
-
 ### Installation rules
 
 .PHONY: install