Bug 1644569: Removed unused nsFilePicker::mLastUsedDirectory; r=mhowell

Differential Revision: https://phabricator.services.mozilla.com/D78979

widget/windows/nsFilePicker.cpp

@@ -32,7 +32,6 @@ using mozilla::mscom::EnsureMTA;
 using namespace mozilla::widget;
 
 char16_t* nsFilePicker::mLastUsedUnicodeDirectory;
-char nsFilePicker::mLastUsedDirectory[MAX_PATH + 1] = {0};
 
 static const unsigned long kDialogTimerTimeout = 300;
 

widget/windows/nsFilePicker.h

@@ -98,7 +98,6 @@ class nsFilePicker : public IFileDialogEvents, public nsBaseWinFilePicker {
   nsString mFilterList;
   int16_t mSelectedType;
   nsCOMArray<nsIFile> mFiles;
-  static char mLastUsedDirectory[];
   nsString mUnicodeFile;
   static char16_t* mLastUsedUnicodeDirectory;
   HWND mDlgWnd;