Bug 1952891: Remove mingw condition to get the password change time r=tjr

This removes the condition added in https://phabricator.services.mozilla.com/D72426

Differential Revision: https://phabricator.services.mozilla.com/D240744

security/manager/ssl/OSReauthenticator.cpp

@@ -47,10 +47,8 @@ using mozilla::dom::Promise;
 #  define SECURITY_WIN32
 #  include <security.h>
 #  include <shlwapi.h>
-#  if !defined(__MINGW32__)
-#    include <Lm.h>
+#  include <lm.h>
 #  undef ACCESS_READ  // nsWindowsRegKey defines its own ACCESS_READ
-#  endif                // !defined(__MINGW32__)
 struct HandleCloser {
   typedef HANDLE pointer;
   void operator()(HANDLE h) {
@@ -118,10 +116,6 @@ std::unique_ptr<char[]> GetUserTokenInfo() {
 }
 
 Maybe<int64_t> GetPasswordLastChanged(const WCHAR* username) {
-#  if defined(__MINGW32__)
-  // NetUserGetInfo requires Lm.h which is not provided in MinGW builds
-  return mozilla::Nothing();
-#  else
   LPUSER_INFO_1 user_info = NULL;
   DWORD passwordAgeInSeconds = 0;
 
@@ -139,7 +133,6 @@ Maybe<int64_t> GetPasswordLastChanged(const WCHAR* username) {
   // Return the time that the password was changed so we can use this
   // for future comparisons.
   return mozilla::Some(PR_Now() - passwordAgeInSeconds * PR_USEC_PER_SEC);
-#  endif
 }
 
 bool IsAutoAdminLogonEnabled() {