tests/tcg: remove duplicate sha512-sse case

We already generate the sha512-sse case in the i386 makefile which
works for both i386 and x86_64.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Fixes: f8a4c6d ("tests/tcg: add vectorised sha512 versions")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220419091020.3008144-22-alex.bennee@linaro.org>

tests/tcg/x86_64/Makefile.target

@@ -22,10 +22,3 @@ test-x86_64: test-i386.c test-i386.h test-i386-shift.h test-i386-muldiv.h
 
 vsyscall: $(SRC_PATH)/tests/tcg/x86_64/vsyscall.c
 	$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
-
-# TCG does not yet support all SSE (SIGILL on pshufb)
-# sha512-sse: CFLAGS=-march=core2 -O3
-# sha512-sse: sha512.c
-# 	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $< -o $@ $(LDFLAGS)
-
-TESTS+=sha512-sse