dbghelp: Remove a useless DllMain, msvcrt can't be unloaded.

dlls/dbghelp/dbghelp.c

@@ -65,25 +65,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
  */
 
 unsigned   dbghelp_options = SYMOPT_UNDNAME;
-HANDLE     hMsvcrt = NULL;
-
-/***********************************************************************
- *           DllMain (DEBUGHLP.@)
- */
-BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
-{
-    switch (fdwReason)
-    {
-    case DLL_PROCESS_ATTACH:    break;
-    case DLL_PROCESS_DETACH:
-        if (hMsvcrt) FreeLibrary(hMsvcrt);
-        break;
-    case DLL_THREAD_ATTACH:     break;
-    case DLL_THREAD_DETACH:     break;
-    default:                    break;
-    }
-    return TRUE;
-}
 
 static struct process* process_first /* = NULL */;
 

dlls/dbghelp/dbghelp_private.h

@@ -545,7 +545,6 @@ extern struct cpu*      dbghelp_current_cpu DECLSPEC_HIDDEN;
 
 /* dbghelp.c */
 extern struct process* process_find_by_handle(HANDLE hProcess) DECLSPEC_HIDDEN;
-extern HANDLE hMsvcrt DECLSPEC_HIDDEN;
 extern BOOL         validate_addr64(DWORD64 addr) DECLSPEC_HIDDEN;
 extern BOOL         pcs_callback(const struct process* pcs, ULONG action, void* data) DECLSPEC_HIDDEN;
 extern void*        fetch_buffer(struct process* pcs, unsigned size) DECLSPEC_HIDDEN;

dlls/dbghelp/symbol.c

@@ -1759,6 +1759,7 @@ DWORD WINAPI UnDecorateSymbolName(PCSTR DecoratedName, PSTR UnDecoratedName,
                                   DWORD UndecoratedLength, DWORD Flags)
 {
     /* undocumented from msvcrt */
+    static HANDLE hMsvcrt;
     static char* (CDECL *p_undname)(char*, const char*, int, void* (CDECL*)(size_t), void (CDECL*)(void*), unsigned short);
     static const WCHAR szMsvcrt[] = {'m','s','v','c','r','t','.','d','l','l',0};