Deleted directories and files that have moved in the tree

Rev: src/nettle/aes.c-hacked:1.2(DEAD)
Rev: src/nettle/sparc/aes-decrypt-internal.asm:1.5(DEAD)
Rev: src/nettle/sparc/aes-encrypt-internal.asm:1.15(DEAD)
Rev: src/nettle/sparc/aes.m4:1.2(DEAD)
Rev: src/nettle/sparc/arcfour-crypt.asm:1.9(DEAD)
Rev: src/nettle/sparc/machine.m4:1.14(DEAD)
Rev: src/nettle/texinfo.tex:1.2(DEAD)