cmCTest{BZR,GIT,P4}: Remove unused cmXMLSafe includes

Source/CTest/cmCTestBZR.cxx

@@ -14,7 +14,6 @@
 #include "cmCTest.h"
 #include "cmSystemTools.h"
 #include "cmXMLParser.h"
-#include "cmXMLSafe.h"
 
 #include <cmsys/RegularExpression.hxx>
 

Source/CTest/cmCTestGIT.cxx

@@ -14,7 +14,6 @@
 #include "cmCTest.h"
 #include "cmSystemTools.h"
 #include "cmAlgorithms.h"
-#include "cmXMLSafe.h"
 
 #include <cmsys/RegularExpression.hxx>
 #include <cmsys/ios/sstream>

Source/CTest/cmCTestP4.cxx

@@ -13,7 +13,6 @@
 
 #include "cmCTest.h"
 #include "cmSystemTools.h"
-#include "cmXMLSafe.h"
 
 #include <cmsys/RegularExpression.hxx>
 #include <cmsys/ios/sstream>