x86: disable a workaround for a buggy glibc version

Signed-off-by: Felix Fietkau <[email protected]>

target/linux/x86/config-4.4

@@ -57,7 +57,7 @@ CONFIG_CLKSRC_I8253=y
 CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
 CONFIG_CLOCKSOURCE_WATCHDOG=y
 CONFIG_CLONE_BACKWARDS=y
-CONFIG_COMPAT_VDSO=y
+# CONFIG_COMPAT_VDSO is not set
 CONFIG_CONSOLE_TRANSLATIONS=y
 # CONFIG_CPU5_WDT is not set
 CONFIG_CPU_FREQ=y