crossgcc/buildgcc: Remove unused GCC_AUTOCONF_VERSION

Clean up leftovers from commit d0f83723 and drop unused
GCC_AUTOCONF_VERSION.

Change-Id: I7d293ae2c8663efdc9ad4146ff32671ffd3e176a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59398
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 6c1a7a5..773b0f0 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -36,7 +36,6 @@
 MPFR_VERSION=4.1.0
 MPC_VERSION=1.2.1
 GCC_VERSION=11.2.0
-GCC_AUTOCONF_VERSION=2.69
 BINUTILS_VERSION=2.37
 IASL_VERSION=20210331
 # CLANG version number
@@ -852,7 +851,6 @@
 
 print_supported() {
 	case "$PRINTSUPPORTED" in
-		AUTOCONF|autoconf)  printf "%s\n" "$GCC_AUTOCONF_VERSION";;
 		BINUTILS|binutils)  printf "%s\n" "$BINUTILS_VERSION";;
 		CLANG|clang)  printf "%s\n" "$CLANG_VERSION";;
 		GCC|gcc)  printf "%s\n" "$GCC_VERSION";;