chore(bl1): remove redundant bl1_arch_next_el_setup

bl1_arch_next_el_setup has no references anywhere in TF-A. Remove it as
it is redundant

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Ice2997f33c318390883347acdd03dc6755f87ea5
diff --git a/bl1/aarch64/bl1_arch_setup.c b/bl1/aarch64/bl1_arch_setup.c
index 0a1cb30..f3de536 100644
--- a/bl1/aarch64/bl1_arch_setup.c
+++ b/bl1/aarch64/bl1_arch_setup.c
@@ -17,19 +17,3 @@
 	/* Set the next EL to be AArch64 */
 	write_scr_el3(read_scr_el3() | SCR_RW_BIT);
 }
-
-/*******************************************************************************
- * Set the Secure EL1 required architectural state
- ******************************************************************************/
-void bl1_arch_next_el_setup(void)
-{
-	u_register_t next_sctlr;
-
-	/* Use the same endianness than the current BL */
-	next_sctlr = (read_sctlr_el3() & SCTLR_EE_BIT);
-
-	/* Set SCTLR Secure EL1 */
-	next_sctlr |= SCTLR_EL1_RES1;
-
-	write_sctlr_el1(next_sctlr);
-}
diff --git a/bl1/bl1_private.h b/bl1/bl1_private.h
index e119ba7..61fb5be 100644
--- a/bl1/bl1_private.h
+++ b/bl1/bl1_private.h
@@ -17,7 +17,6 @@
  * Function prototypes
  *****************************************/
 void bl1_arch_setup(void);
-void bl1_arch_next_el_setup(void);
 
 void bl1_prepare_next_image(unsigned int image_id);
 void bl1_run_bl2_in_root(void);
diff --git a/plat/arm/board/fvp_r/fvp_r_bl1_arch_setup.c b/plat/arm/board/fvp_r/fvp_r_bl1_arch_setup.c
index ae6af6c..820470b 100644
--- a/plat/arm/board/fvp_r/fvp_r_bl1_arch_setup.c
+++ b/plat/arm/board/fvp_r/fvp_r_bl1_arch_setup.c
@@ -17,19 +17,3 @@
 {
 	/* v8-R64 does not include SCRs. */
 }
-
-/*******************************************************************************
- * Set the Secure EL1 required architectural state
- ******************************************************************************/
-void bl1_arch_next_el_setup(void)
-{
-	u_register_t next_sctlr;
-
-	/* Use the same endianness than the current BL */
-	next_sctlr = (read_sctlr_el2() & SCTLR_EE_BIT);
-
-	/* Set SCTLR Secure EL1 */
-	next_sctlr |= SCTLR_EL1_RES1;
-
-	write_sctlr_el1(next_sctlr);
-}