Remove S2N_HMAC_SHA1 from s2n_aead_aes_test
Remove S2N_HMAC_SHA1 from s2n_aead_aes_test

GCM mode should be using S2N_HMAC_NONE. Tests were passing because
both the client and server were expecting the extra(unnecessary) MAC
header. A real TLS client would fail.

colmmacc/s2n,colmmacc/s2n,alexeblee/s2n,wcs1only/s2n,gibson-compsci/s2n,jldodds/s2n,colmmacc/s2n,wcs1only/s2n,awslabs/s2n,bpdavidson/s2n,PKRoma/s2n,jldodds/s2n,PKRoma/s2n,alexeblee/s2n,bpdavidson/s2n,gibson-compsci/s2n,alexeblee/s2n,wcs1only/s2n,gibson-compsci/s2n,awslabs/s2n,wcs1only/s2n,alexeblee/s2n,jldodds/s2n,awslabs/s2n,alexeblee/s2n,bpdavidson/s2n,alexeblee/s2n,PKRoma/s2n,PKRoma/s2n,raycoll/s2n,bpdavidson/s2n,gibson-compsci/s2n,bpdavidson/s2n,raycoll/s2n,colmmacc/s2n,colmmacc/s2n,jldodds/s2n,awslabs/s2n,raycoll/s2n,wcs1only/s2n,wcs1only/s2n,awslabs/s2n,PKRoma/s2n,gibson-compsci/s2n,PKRoma/s2n,colmmacc/s2n,gibson-compsci/s2n,wcs1only/s2n,PKRoma/s2n,awslabs/s2n,bpdavidson/s2n,jldodds/s2n,raycoll/s2n,raycoll/s2n,PKRoma/s2n,raycoll/s2n,wcs1only/s2n