building 32 bit x86 with MSVC.

[pedrolcl]

This is important for our vcpkg.

Remove "compute_tick_conv.c"

This was the GCC only original function:

         /* Replaced this horrible obfuscated code: */
        {
            // pSMFData->tickConv = (EAS_U16) (((temp * 1024) / pSMFData->ppqn + 500) / 1000);
            uint64_t temp64;
            if (__builtin_mul_overflow(temp, 1024u, &temp64) ||
                    pSMFData->ppqn == 0 ||
                    (temp64 /= pSMFData->ppqn, false) ||
                    __builtin_add_overflow(temp64, 500, &temp64) ||
                    (temp64 /= 1000, false) ||
                    temp64 > 65535) {
                pSMFData->tickConv = 65535;
            } else {
                pSMFData->tickConv = (EAS_U16) temp64;
            }
        }