Remove MULTI_CONSOLE_API flag and references to it

The new API becomes the default one.

Change-Id: Ic1d602da3dff4f4ebbcc158b885295c902a24fec
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

plat/socionext/synquacer/platform.mk

@@ -5,7 +5,6 @@
 #
 
 override RESET_TO_BL31			:= 1
-override MULTI_CONSOLE_API		:= 1
 override PROGRAMMABLE_RESET_ADDRESS	:= 1
 override USE_COHERENT_MEM		:= 1
 override SEPARATE_CODE_AND_RODATA	:= 1

plat/st/stm32mp1/platform.mk

@@ -8,7 +8,6 @@ ARM_CORTEX_A7		:=	yes
 ARM_WITH_NEON		:=	yes
 BL2_AT_EL3		:=	1
 USE_COHERENT_MEM	:=	0
-MULTI_CONSOLE_API	:=	1
 
 STM32_TF_VERSION	?=	0
 

plat/ti/k3/common/plat_common.mk

@@ -28,7 +28,6 @@ ERRATA_A72_859971	:=	1
 # Split out RO data into a non-executable section
 SEPARATE_CODE_AND_RODATA :=    1
 
-MULTI_CONSOLE_API	:=	1
 TI_16550_MDR_QUIRK	:=	1
 $(eval $(call add_define,TI_16550_MDR_QUIRK))
 

plat/xilinx/versal/platform.mk

@@ -8,7 +8,6 @@ A53_DISABLE_NON_TEMPORAL_HINT := 0
 SEPARATE_CODE_AND_RODATA := 1
 override RESET_TO_BL31 := 1
 PL011_GENERIC_UART := 1
-MULTI_CONSOLE_API := 1
 
 ifdef VERSAL_ATF_MEM_BASE
     $(eval $(call add_define,VERSAL_ATF_MEM_BASE))