eglibc: do not prompt for the revision, it is supposed to be changed by developers, not users.

fixes changing the eglibc version in menuconfig without resetting the config

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 34029

toolchain/eglibc/Config.in

@@ -17,7 +17,6 @@ endchoice
 
 config EGLIBC_REVISION
 	string
-	prompt "eglibc revision"
 	depends on TOOLCHAINOPTS && USE_EGLIBC
 	default "18909" if EGLIBC_VERSION_2_15
 	default "19922" if EGLIBC_VERSION_2_16