ARM: 9116/1: unified: Remove check for gcc < 4

Since commit cafa0010 ("Raise the minimum required gcc version
to 4.6"), the kernel can no longer be compiled using gcc-3.
Hence this condition is never true, and the check can thus be removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

arch/arm/include/asm/unified.h

@@ -24,10 +24,6 @@ __asm__(".syntax unified");
 
 #ifdef CONFIG_THUMB2_KERNEL
 
-#if __GNUC__ < 4
-#error Thumb-2 kernel requires gcc >= 4
-#endif
-
 /* The CPSR bit describing the instruction set (Thumb) */
 #define PSR_ISETSTATE	PSR_T_BIT