arm: remove unused _end_vect and _vectors_end symbols

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

arch/arm/cpu/arm1136/start.S

@@ -53,8 +53,6 @@ _irq:			.word irq
 _fiq:			.word fiq
 _pad:			.word 0x12345678 /* now 16*4=64 */
 #endif	/* CONFIG_SPL_BUILD */
-.global _end_vect
-_end_vect:
 
 	.balignl 16,0xdeadbeef
 /*

arch/arm/cpu/arm1176/start.S

@@ -61,8 +61,6 @@ _pad:
 	. = _start + 64
 #endif
 
-.global _end_vect
-_end_vect:
 	.balignl 16,0xdeadbeef
 /*
  *************************************************************************

arch/arm/cpu/arm946es/start.S

@@ -56,8 +56,6 @@ _fiq:
 
 	.balignl 16,0xdeadbeef
 
-_vectors_end:
-
 /*
  *************************************************************************
  *

arch/arm/cpu/armv7/start.S

@@ -55,9 +55,6 @@ _fiq:			.word fiq
 _pad:			.word 0x12345678 /* now 16*4=64 */
 #endif	/* CONFIG_SPL_BUILD */
 
-.global _end_vect
-_end_vect:
-
 	.balignl 16,0xdeadbeef
 /*************************************************************************
  *

arch/arm/cpu/pxa/start.S

@@ -61,8 +61,6 @@ _irq:			.word irq
 _fiq:			.word fiq
 _pad:			.word 0x12345678 /* now 16*4=64 */
 #endif	/* CONFIG_SPL_BUILD */
-.global _end_vect
-_end_vect:
 
 	.balignl 16,0xdeadbeef
 /*