-Werror=unused-macros (MinGW, USE_ACCESSIBILITY_FILE)

...dead at least since c58b07c958 "#i20020#," if
not even since the beginning, 49614181e5 "#i20052#
plugin lib for java framework."

Change-Id: Ic0b35341cb8038ccfe0a2f4f5b758341b9ab13b9

jvmfwk/source/framework.cxx

@@ -34,13 +34,6 @@
 #include "elements.hxx"
 #include "fwkbase.hxx"
 
-#ifdef WNT
-/** The existence of the file useatjava.txt decides if a Java should be used
-    that supports accessibility tools.
- */
-#define USE_ACCESSIBILITY_FILE "useatjava.txt"
-#endif
-
 namespace {
 
 static bool g_bEnabledSwitchedOn = false;