x86/crypto/aesni-intel_avx: Remove unused macros

These macros are no longer used; remove them.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Link: https://lore.kernel.org/r/53f7136ea93ebdbca399959e6d2991ecb46e733e.1614182415.git.jpoimboe@redhat.com

arch/x86/crypto/aesni-intel_avx-x86_64.S

@@ -212,10 +212,6 @@ HashKey_8_k    = 16*21   # store XOR of HashKey^8 <<1 mod poly here (for Karatsu
 #define arg4 %rcx
 #define arg5 %r8
 #define arg6 %r9
-#define arg7 STACK_OFFSET+8*1(%r14)
-#define arg8 STACK_OFFSET+8*2(%r14)
-#define arg9 STACK_OFFSET+8*3(%r14)
-#define arg10 STACK_OFFSET+8*4(%r14)
 #define keysize 2*15*16(arg1)
 
 i = 0
@@ -237,9 +233,6 @@ define_reg j %j
 .noaltmacro
 .endm
 
-# need to push 4 registers into stack to maintain
-STACK_OFFSET = 8*4
-
 TMP1 =   16*0    # Temporary storage for AAD
 TMP2 =   16*1    # Temporary storage for AES State 2 (State 1 is stored in an XMM register)
 TMP3 =   16*2    # Temporary storage for AES State 3
@@ -256,7 +249,6 @@ VARIABLE_OFFSET = 16*8
 ################################
 
 .macro FUNC_SAVE
-        #the number of pushes must equal STACK_OFFSET
         push    %r12
         push    %r13
         push    %r14