Revert "print_backtrace_skipping_top_frames: Implementation for MSVC "

This reverts commit d1e7a54f3a.

vlib/compiler/cheaders.v

@@ -19,7 +19,6 @@ CommonCHeaders = '
 #include <sys/time.h>
 #include <unistd.h> // sleep
 #else
-#pragma comment(lib, "Dbghelp.lib")
 #if defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ < __MSVCR90_DLL
 #error Please upgrade your MinGW distribution to use msvcr90.dll or later.
 #endif

vlib/compiler/msvc.v

@@ -3,7 +3,7 @@ module compiler
 import os
 
 #flag windows -l shell32
-#flag windows -l dbghelp
+
 // RegOpenKeyExA etc
 #flag windows -l advapi32
 

vlib/compiler/tests/backtrace_test.v

@@ -1,11 +0,0 @@
-/*
- Test for backtrace capability
-*/
-fn a_method() {
-	print_backtrace() 
-}
-
-fn test_backtrace() {
-	a_method()
-	//panic('hi')
-}