toolchain: drop old BR2_TOOLCHAIN_HAS_BINUTILS_BUG_* options

The BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19615 and
BR2_TOOLCHAIN_HAS_BINUTILS_BUG_20006 options were last selected by the
BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64 toolchain, but this
toolchain has been removed as part of commit
d87e114a8ffacdc71f853e7c4ea76fd3c6958d22 in August 2020.

It's time to get rid of those two options that are never enabled.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit a7143fb316d048d8a148df9371dbbab07dac3de3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

boot/syslinux/Config.in

@@ -35,7 +35,6 @@ config BR2_TARGET_SYSLINUX_PXELINUX
 
 config BR2_TARGET_SYSLINUX_MBR
 	bool "install mbr"
-	depends on !BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19615
 	select BR2_TARGET_SYSLINUX_LEGACY_BIOS
 	help
 	  Install the legacy-BIOS 'mbr' image, to boot off a

package/go/Config.in.host

@@ -2,7 +2,6 @@
 config BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
 	bool
 	default y
-	depends on !BR2_TOOLCHAIN_HAS_BINUTILS_BUG_20006
 	depends on BR2_PACKAGE_HOST_GO_BOOTSTRAP_ARCH_SUPPORTS
 	depends on (BR2_arm && BR2_TOOLCHAIN_SUPPORTS_PIE) || BR2_aarch64 \
 		|| BR2_i386 || BR2_x86_64 || BR2_powerpc64le \

toolchain/Config.in

@@ -71,16 +71,6 @@ source "package/gdb/Config.in.host"
 
 comment "Toolchain Generic Options"
 
-# https://sourceware.org/bugzilla/show_bug.cgi?id=19615
-# Affect toolchains built with binutils 2.26 (fixed in binutils 2.26.1).
-config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19615
-	bool
-
-# https://sourceware.org/bugzilla/show_bug.cgi?id=20006
-# Affect toolchains built with binutils 2.26 (fixed in binutils 2.26.1).
-config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_20006
-	bool
-
 # https://sourceware.org/bugzilla/show_bug.cgi?id=21464
 # Affect toolchains built with binutils 2.31.1, still not fixed.
 config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_21464