Remove references to PCVOID and LPUINT.
Remove types that don't exist on Windows.

include/imagehlp.h

diff --git a/include/imagehlp.h b/include/imagehlp.h
index d0cad79..38ec91f 100644
--- a/include/imagehlp.h
+++ b/include/imagehlp.h
@@ -324,7 +324,7 @@
 );
 
 typedef BOOL (CALLBACK *PREAD_PROCESS_MEMORY_ROUTINE)(
-  HANDLE  hProcess, PCVOID lpBaseAddress, PVOID lpBuffer,
+  HANDLE  hProcess, LPCVOID lpBaseAddress, PVOID lpBuffer,
   DWORD nSize, PDWORD lpNumberOfBytesRead
 );