arch/Config.in: allow building a buildroot toolchain on SPARC

With this patch series we again allow building a Buildroot toolchain
for SPARC, because SPARC was fixed in uClibc-ng, so SPARC systems
work fine now.

Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

arch/Config.in

@@ -216,11 +216,6 @@ config BR2_sh
 config BR2_sparc
 	bool "SPARC"
 	select BR2_USE_MMU
-	# uClibc-ng broken on sparc due to recent gcc changes
-	# that need to be reverted since gcc 8.4, 9.3 and 10.1.
-	# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784
-	# gcc <= 10.x has been removed from Buildroot.
-	select BR2_ARCH_HAS_NO_TOOLCHAIN_BUILDROOT
 	help
 	  SPARC (from Scalable Processor Architecture) is a RISC
 	  instruction set architecture (ISA) developed by Sun