Replace libdisasm with capstone

src/third_party/libdisasm/ia32_settings.h

-#ifndef IA32_SETTINGS_H
-#define IA32_SETTINGS_H
-
-#include "libdis.h"
-
-typedef struct {
-        /* options */
-        unsigned char endian,           /* 0 = big, 1 = little */
-                      wc_byte,          /* wildcard byte */
-                      max_insn,         /* max insn size */
-                      sz_addr,          /* default address size */
-                      sz_oper,          /* default operand size */
-                      sz_byte,          /* # bits in byte */
-                      sz_word,          /* # bytes in machine word */
-                      sz_dword;         /* # bytes in machine dword */
-        unsigned int id_sp_reg,         /* id of stack pointer */
-                     id_fp_reg,         /* id of frame pointer */
-                     id_ip_reg,         /* id of instruction pointer */
-                     id_flag_reg,       /* id of flags register */
-                     offset_gen_regs,   /* start of general regs */
-                     offset_seg_regs,   /* start of segment regs */
-                     offset_fpu_regs;   /* start of floating point regs */
-        /* user-controlled settings */
-        enum x86_options options;
-} ia32_settings_t;
-
-#endif