remove obsolete port target

ports/ports/vancouver.mk

@@ -1,54 +0,0 @@
-VANCOUVER_REV     = a7f4c2de42247e7a7c6ddb27a48f8a7d93d469ba
-VANCOUVER         = vancouver-git
-VANCOUVER_URL     = https://github.com/TUD-OS/NUL.git
-
-#
-# Check for tools
-#
-$(call check_tool,git)
-
-#
-# Interface to top-level prepare Makefile
-#
-PORTS += $(VANCOUVER)
-
-#
-# We need to execute some python scripts for preparing the i82576vf
-# device model.
-#
-PYTHON2 := $(notdir $(lastword $(shell which python2 python2.{4,5,6,7,8})))
-ifeq ($(PYTHON2),)
-prepare: python_not_installed
-python_not_installed:
-	$(ECHO) "Error: Vancouver needs Python 2 to be installed"
-	@false;
-endif
-
-prepare:: $(CONTRIB_DIR)/$(VANCOUVER)
-
-#
-# Port-specific local rules
-#
-$(DOWNLOAD_DIR)/$(VANCOUVER)/.git:
-	$(VERBOSE)git clone $(VANCOUVER_URL) $(DOWNLOAD_DIR)/$(VANCOUVER) && \
-	cd download/vancouver-git && \
-	git reset --hard $(VANCOUVER_REV) && \
-	cd ../.. && touch $@
-
-I82576VF_DIR = $(CONTRIB_DIR)/$(VANCOUVER)/julian/model/82576vf
-
-$(CONTRIB_DIR)/$(VANCOUVER)/.git: $(DOWNLOAD_DIR)/$(VANCOUVER)/.git
-	$(VERBOSE)git clone $(DOWNLOAD_DIR)/$(VANCOUVER) $(CONTRIB_DIR)/$(VANCOUVER)
-	$(VERBOSE)patch -d $(CONTRIB_DIR)/$(VANCOUVER) -N -p1 < src/vancouver/rename-82576-i82576.patch
-	@# fix python version in code generator scripts
-	$(VERBOSE)sed -i "s/env python2/env $(PYTHON2)/" $(I82576VF_DIR)/genreg.py
-	$(VERBOSE)sed -i "s/env python2/env $(PYTHON2)/" $(I82576VF_DIR)/genreg2.py
-	@# call code generators
-	$(VERBOSE)cd $(I82576VF_DIR); \
-	          ./genreg.py reg_pci.py ../../../vancouver/include/model/82576vfpci.inc
-	$(VERBOSE)cd $(I82576VF_DIR); \
-	          ./genreg.py reg_mmio.py ../../../vancouver/include/model/82576vfmmio.inc
-	$(VERBOSE)cd $(I82576VF_DIR); \
-	          ./genreg2.py reg_mmio.py ../../../vancouver/include/model/82576vfmmio_vnet.inc
-
-$(CONTRIB_DIR)/$(VANCOUVER): $(CONTRIB_DIR)/$(VANCOUVER)/.git