treewide: Remove repeated words

Found by linter

Change-Id: I7a49cce0b56cf83d0e4490733f9190284a314c4a
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72896
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
diff --git a/src/soc/intel/common/block/cpu/car/cache_as_ram.S b/src/soc/intel/common/block/cpu/car/cache_as_ram.S
index a1e73f9..f2ae72c 100644
--- a/src/soc/intel/common/block/cpu/car/cache_as_ram.S
+++ b/src/soc/intel/common/block/cpu/car/cache_as_ram.S
@@ -389,7 +389,7 @@
 	mov	%eax, %ecx	/* save to ecx */
 	mov	$1, %ebx
 	shl	%cl, %ebx
-	sub	$1, %ebx	/* resulting mask is is in ebx */
+	sub	$1, %ebx	/* resulting mask is in ebx */
 
 	/* Set this mask for initial cache fill */
 	mov	$MSR_L2_QOS_MASK(0), %ecx