Revert "Makefile: možnost deploy_test deploynout i jinou branch."

Tohle stejně nefungovalo. Asi je to dobrý nápad, ale git se chová jinak, než
jsem si myslel.

This reverts commit ba5ceb14ba.

Makefile

@@ -2,7 +2,6 @@
 PYTHON=python2.7
 VE_VER=16.0.0
 LOCAL_PYTHON=bin/python
-TEST_BRANCH?=test
 
 all: install
 
@@ -67,7 +66,7 @@ deploy_test:
 	@if [ ${USER} != "mam-web" ]; then echo "Only possible by user mam-web"; exit 1; fi
 	@if [ `pwd` != "/akce/mam/www/mamweb-test" ]; then echo "Only possible in /akce/mam/www/mamweb-test"; exit 1; fi
 	@echo "Installing version from origin/test ..."
-	git pull origin $(TEST_BRANCH)
+	git pull origin test
 	git clean -f
 	make install
 	./manage.py migrate