removed gmp extra files
移除gmp额外文件

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Fix libgmp revise files
修正gmp文件

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
sync gmp revise
同步gmp修正

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Fix gmp build
修正gmp编译

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Fix mpn_generic.c
修正mpn_generic.c

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>