Remove obsolete patches

OBS-URL: https://build.opensuse.org/package/show/science/muparser?expand=0&rev=3

muparser-prereq.patch

@@ -1,11 +0,0 @@
---- muparser_v134/Makefile.in.orig	2010-11-10 17:20:25.613034414 +0100
-+++ muparser_v134/Makefile.in	2010-11-10 17:23:52.413284145 +0100
-@@ -291,7 +291,7 @@
- @COND_SHARED_1@	rm -f $(DESTDIR)$(prefix)/$$f; \
- @COND_SHARED_1@	done
- 
--@COND_SAMPLES_1@$(top_builddir)/samples/example1/example1$(EXEEXT): $(EXAMPLE1_OBJECTS) $(__muParser_lib___depname)
-+@COND_SAMPLES_1@$(top_builddir)/samples/example1/example1$(EXEEXT): $(EXAMPLE1_OBJECTS) $(__muParser_lib___depname) $(__muParser_dll___depname)
- @COND_SAMPLES_1@	$(CXX) -o $@ $(EXAMPLE1_OBJECTS) -L$(top_builddir)/lib   -L$(srcdir)/lib $(LDFLAGS)  -lmuparser$(DEBUG_BUILD_POSTFIX) $(LIBS)
- @COND_SAMPLES_1@	
- @COND_SAMPLES_1@	$(__example1___mac_setfilecmd)

muparser.spec

@@ -28,7 +28,6 @@ Source:         %name-%version.tar.bz2
 Patch1:		muparser-fix-ac.diff
 Patch2:		muparser-fix-undef.diff
 Patch3:		muparser-optflags.patch
-Patch4:		muparser-prereq.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  autoconf automake gcc-c++ libtool pkgconfig