Drop USE_QT4 code

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

acinclude.m4.in

@@ -1092,9 +1092,6 @@ AC_DEFUN([KDE_USE_TQT],
   #define TQT_VERSION_ONLY
   #include <tqt.h>
   #undef TQT_VERSION_ONLY
-  #ifdef USE_QT4
-  choke me
-  #endif
   ], ,
     kde_tqtver=3,
   )
@@ -1286,7 +1283,6 @@ fi
 
 dnl ------------------------------------------------------------
 dnl If we got --enable-embedded then adjust the TQt library name.
-dnl Also TQt4 uses a different library name
 dnl ------------------------------------------------------------
 if test "$kde_tqtver" = "3"; then
   if test "x$kde_use_tqt_emb" = "xyes"; then