package/netsurf-buildsystem: remove package

This host package was only used as a build dependency of libsvgtiny,
which itself has been removed, so it can be dropped as well.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -1001,9 +1001,6 @@ F:	package/atest/
 F:	package/crucible/
 F:	package/kmscube/
 
-N:	Fabio Porcedda <fabio.porcedda@gmail.com>
-F:	package/netsurf-buildsystem/
-
 N:	Fabio Urquiza <fabiorush@gmail.com>
 F:	package/bitcoin/
 

package/netsurf-buildsystem/netsurf-buildsystem.hash

@@ -1,3 +0,0 @@
-# Locally computed
-sha256  b8620c6a95ccf071046cdb8e4e0ca149cdd58d292eb9ee02b3b0d63646466b72  netsurf-buildsystem-7574b41345968b5f7e9ca5875faccb1478ce0555-git4.tar.gz
-sha256  b2ddc1d607332423f6cf415b2ac619a1c03dd565facdc39a571282a520929a65  llvm/LICENSE.TXT

package/netsurf-buildsystem/netsurf-buildsystem.mk

@@ -1,20 +0,0 @@
-################################################################################
-#
-# netsurf-buildsystem
-#
-################################################################################
-
-NETSURF_BUILDSYSTEM_VERSION = 7574b41345968b5f7e9ca5875faccb1478ce0555
-NETSURF_BUILDSYSTEM_SITE = http://git.netsurf-browser.org/buildsystem.git
-NETSURF_BUILDSYSTEM_SITE_METHOD = git
-NETSURF_BUILDSYSTEM_LICENSE = MIT, BSD-3-Clause (for llvm/* files)
-NETSURF_BUILDSYSTEM_LICENSE_FILES = llvm/LICENSE.TXT
-
-NETSURF_BUILDSYSTEM_INSTALL_DIR = $(HOST_DIR)/share/netsurf-buildsystem
-
-define HOST_NETSURF_BUILDSYSTEM_INSTALL_CMDS
-	mkdir -p $(NETSURF_BUILDSYSTEM_INSTALL_DIR)
-	cp -dpfr $(@D)/* $(NETSURF_BUILDSYSTEM_INSTALL_DIR)
-endef
-
-$(eval $(host-generic-package))