package/ghostscript: bump to version 9.55.0

- Drop patches (already in version)
- Disable pdf which fails to build and was added by
  https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=316c3a08269212f1005709da64efcb383f8f5ce0
- Update hash of license file (references on ETS related patents removed
  with
  https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=431167121968b066d90b0506347b6eb779e08a3f)

https://www.ghostscript.com/doc/9.54.0/News.htm
https://www.ghostscript.com/doc/9.55.0/News.htm

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/ghostscript/ghostscript.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GHOSTSCRIPT_VERSION = 9.53.3
+GHOSTSCRIPT_VERSION = 9.55.0
 GHOSTSCRIPT_SITE = https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs$(subst .,,$(GHOSTSCRIPT_VERSION))
 GHOSTSCRIPT_LICENSE = AGPL-3.0
 GHOSTSCRIPT_LICENSE_FILES = LICENSE
@@ -21,15 +21,6 @@ GHOSTSCRIPT_DEPENDENCIES = \
 	libpng \
 	tiff
 
-# 0002-Bug-704342-Include-device-specifier-strings-in-acces.patch
-GHOSTSCRIPT_IGNORE_CVES += CVE-2021-3781
-
-# 0003-oss-fuzz-30715-Check-stack-limits-after-function-evaluation.patch
-GHOSTSCRIPT_IGNORE_CVES += CVE-2021-45944
-
-# 0004-Bug-703902-Fix-op-stack-management-in-sampled_data_continue.patch
-GHOSTSCRIPT_IGNORE_CVES += CVE-2021-45949
-
 # Ghostscript includes (old) copies of several libraries, delete them.
 # Inspired by linuxfromscratch:
 # http://www.linuxfromscratch.org/blfs/view/svn/pst/gs.html
@@ -52,6 +43,7 @@ GHOSTSCRIPT_CONF_OPTS = \
 	--enable-freetype \
 	--disable-gtk \
 	--without-libpaper \
+	--without-pdf \
 	--with-system-libtiff
 
 ifeq ($(BR2_PACKAGE_JBIG2DEC),y)