package pthreads-w32: remove patch - DPTW32_STATIC_LIB is define with GC-static target
Revert "package pthreads-w32: remove patch - DPTW32_STATIC_LIB is define with GC-static target"

This reverts commit 71abd6e106a2a3c95202e6e18fc3f47ffeedd7ae.