aspeed-g7: remove function tracing kconfig

This config should only be a part of the dev kconfig fragment that gets added for non-prod builds - prod images will encounter kernel build failures with this enabled.

fusion2 in presubmits
Tested: GBMC_CONFIG=prod builds aspeed-g7 now
Google-Bug-Id: 556271887
Change-Id: Ie504389835c0a8ee74efa3803a40715540b9010f
Signed-off-by: Sam Agazaryan <samagazaryan@google.com>

recipes-kernel/linux/files/aspeed-g7-gbmc.cfg

diff --git a/recipes-kernel/linux/files/aspeed-g7-gbmc.cfg b/recipes-kernel/linux/files/aspeed-g7-gbmc.cfg
index 828c22a..17480e2 100644
--- a/recipes-kernel/linux/files/aspeed-g7-gbmc.cfg
+++ b/recipes-kernel/linux/files/aspeed-g7-gbmc.cfg
@@ -308,7 +308,6 @@
 CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_DEBUG_LIST=y
-CONFIG_FUNCTION_TRACER=y
 CONFIG_AST2700_FII_EDAF_MAP=y
 # CONFIG_STRICT_DEVMEM is not set
 # CONFIG_RUNTIME_TESTING_MENU is not set