diff --git a/qt-x11-opensource-src-4.5.1-enable_ft_lcdfilter.patch b/qt-x11-opensource-src-4.5.1-enable_ft_lcdfilter.patch
deleted file mode 100644
index 9923f33..0000000
--- a/qt-x11-opensource-src-4.5.1-enable_ft_lcdfilter.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-diff -up qt-x11-opensource-src-4.5.1/src/gui/text/qfontengine_ft.cpp.enable_ft_lcdfilter qt-x11-opensource-src-4.5.1/src/gui/text/qfontengine_ft.cpp
---- qt-x11-opensource-src-4.5.1/src/gui/text/qfontengine_ft.cpp.enable_ft_lcdfilter	2009-04-21 18:57:41.000000000 -0500
-+++ qt-x11-opensource-src-4.5.1/src/gui/text/qfontengine_ft.cpp	2009-04-24 11:17:49.562695405 -0500
-@@ -72,7 +72,7 @@
- #include FT_CONFIG_OPTIONS_H
- #endif
- 
--#if defined(FT_LCD_FILTER_H) && defined(FT_CONFIG_OPTION_SUBPIXEL_RENDERING)
-+#if defined(FT_LCD_FILTER_H) // && defined(FT_CONFIG_OPTION_SUBPIXEL_RENDERING)
- #define QT_USE_FREETYPE_LCDFILTER
- #endif
- 
-@@ -1051,7 +1051,7 @@ QFontEngineFT::Glyph *QFontEngineFT::loa
-             Q_ASSERT(antialias);
-             uchar *convoluted = new uchar[bitmap.rows*bitmap.pitch];
-             bool useLegacyLcdFilter = false;
--#if defined(FC_LCD_FILTER) && defined(FT_LCD_FILTER_H)
-+#if defined(FT_LCD_FILTER_H) // && defined(FC_LCD_FILTER)
-             useLegacyLcdFilter = (lcdFilterType == FT_LCD_FILTER_LEGACY);
- #endif
-             uchar *buffer = bitmap.buffer;
diff --git a/qt.spec b/qt.spec
index 86ff794..735bfbf 100644
--- a/qt.spec
+++ b/qt.spec
@@ -12,7 +12,7 @@ Epoch:   1
 Name:    qt4
 %endif
 Version: 4.5.1
-Release: 5%{?dist}
+Release: 6%{?dist}
 
 # See LGPL_EXCEPTIONS.txt, LICENSE.GPL3, respectively, for exception details
 License: LGPLv2 with exceptions or GPLv3 with exceptions
@@ -41,7 +41,6 @@ Patch5: qt-all-opensource-src-4.4.0-rc1-as_IN-437440.patch
 Patch13: qt-x11-opensource-src-4.5.0-gcc_hack.patch
 # qt fails to build on ia64: http://bugzilla.redhat.com/492174
 Patch14: qt-x11-opensource-src-4.5.0-ia64_boilerplate.patch
-Patch15: qt-x11-opensource-src-4.5.1-enable_ft_lcdfilter.patch
 
 ## upstreamable bits
 # http://bugzilla.redhat.com/485677
@@ -342,7 +341,6 @@ test -x apply_patches && ./apply_patches
 %patch5 -p1 -b .bz#437440-as_IN-437440
 %patch13 -p1 -b .gcc_hack
 %patch14 -p1 -b .ia64_boilerplate
-%patch15 -p1 -b .enable_ft_lcdfilter
 %patch51 -p1 -b .qdoc3
 %patch52 -p1 -b .sparc64
 %patch53 -p1 -b .qatomic-inline-asm
@@ -820,6 +818,9 @@ gtk-update-icon-cache -q %{_datadir}/icons/hicolor 2> /dev/null ||:
 
 
 %changelog
+* Mon Apr 27 2009 Than Ngo <than@redhat.com> - 4.5.1-6
+- drop useless qt-x11-opensource-src-4.5.1-enable_ft_lcdfilter.patch
+
 * Mon Apr 27 2009 Rex Dieter <rdieter@fedoraproject.org> - 4.5.1-5
 - -devel: Provides: *-static for libQtUiTools.a