Remove initializations of wxString with wxEmptyString

An empty string is the default

src/common/cmndata.cpp

@@ -67,7 +67,6 @@ wxPrintData::wxPrintData()
     m_printCollate = false;
 
     // New, 24/3/99
-    m_printerName = wxEmptyString;
     m_colour = true;
     m_duplexMode = wxDUPLEX_SIMPLEX;
     m_printQuality = wxPRINT_QUALITY_HIGH;

src/common/filesys.cpp

@@ -153,7 +153,7 @@ wxString wxFileSystemHandler::GetMimeTypeFromExt(const wxString& location)
 /* static */
 wxString wxFileSystemHandler::GetProtocol(const wxString& location)
 {
-    wxString s = wxEmptyString;
+    wxString s;
     int i, l = location.length();
     bool fnd = false;
 

src/common/fs_arc.cpp

@@ -312,7 +312,6 @@ wxArchiveFSHandler::wxArchiveFSHandler()
 {
     m_Archive = NULL;
     m_FindEntry = NULL;
-    m_ZipFile = m_Pattern = m_BaseDir = wxEmptyString;
     m_AllowDirs = m_AllowFiles = true;
     m_DirsFound = NULL;
     m_cache = NULL;
@@ -477,7 +476,7 @@ wxString wxArchiveFSHandler::FindNext()
 wxString wxArchiveFSHandler::DoFind()
 {
     wxString namestr, dir, filename;
-    wxString match = wxEmptyString;
+    wxString match;
 
     while (match == wxEmptyString)
     {

src/common/paper.cpp

@@ -50,7 +50,6 @@ wxPrintPaperType::wxPrintPaperType()
 {
     m_paperId = wxPAPER_NONE;
     m_platformId = 0;
-    m_paperName = wxEmptyString;
     m_width = 0;
     m_height = 0;
 }