Remove MSVC6 support.

Don't support this compiler any more, this allows to get rid of tons of
MSVC6-specific workarounds, in particular we can now use Bind() and natural
template functions calls in the library code.

Also remove MSVC6 project and solution files and don't generate them when
bakefile_gen is ran any more (removing the remaining occurrences of msvc6prj
from the bakefiles results in weird bake-time errors, so it's simpler to just
leave them there).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76532 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/private/textmeasure.h

@@ -62,18 +62,6 @@ public:
                                double scaleX);
 
 
-    // These functions are called by our public methods before and after each
-    // call to DoGetTextExtent(). Derived classes may override them to prepare
-    // for -- possibly several -- subsequent calls to DoGetTextExtent().
-    //
-    // As these calls must be always paired, they're never called directly but
-    // only by our friend MeasuringGuard class.
-    //
-    // NB: They're public only to allow VC6 to compile this code, there doesn't
-    //     seem to be any way to give MeasuringGuard access to them (FIXME-VC6)
-    virtual void BeginMeasuring() { }
-    virtual void EndMeasuring() { }
-
     // This is another method which is only used by MeasuringGuard.
     bool IsUsingDCImpl() const { return m_useDCImpl; }
 
@@ -101,6 +89,16 @@ protected:
     };
 
 
+    // These functions are called by our public methods before and after each
+    // call to DoGetTextExtent(). Derived classes may override them to prepare
+    // for -- possibly several -- subsequent calls to DoGetTextExtent().
+    //
+    // As these calls must be always paired, they're never called directly but
+    // only by our friend MeasuringGuard class.
+    virtual void BeginMeasuring() { }
+    virtual void EndMeasuring() { }
+
+
     // The main function of this class, to be implemented in platform-specific
     // way used by all our public methods.
     //