drop old obsoletes and conflicts

ncurses.spec

@@ -30,10 +30,6 @@ tool captoinfo.
 %package libs
 Summary: Ncurses libraries
 Requires: %{name}-base = %{version}-%{release}
-# libs introduced in 5.6-13 
-Obsoletes: ncurses < 5.6-13
-Conflicts: ncurses < 5.6-13
-Obsoletes: libtermcap < 2.0.8-48
 
 %description libs
 The curses library routines are a terminal-independent method of
@@ -70,11 +66,6 @@ This package contains C++ bindings of the ncurses ABI version 6 libraries.
 
 %package base
 Summary: Descriptions of common terminals
-Obsoletes: termcap < 1:5.5-2
-# base introduced in 5.6-13 
-Conflicts: ncurses < 5.6-13
-# /lib -> /usr/lib move
-Conflicts: filesystem < 3
 # rxvt-unicode-256color entry used to be in rxvt-unicode and briefly
 # in rxvt-unicode-terminfo
 Conflicts: rxvt-unicode < 9.22-15
@@ -99,8 +90,6 @@ Summary: Development files for the ncurses library
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 Requires: %{name}-c++-libs%{?_isa} = %{version}-%{release}
 Requires: pkgconfig
-Obsoletes: libtermcap-devel < 2.0.8-48
-Provides: libtermcap-devel = 2.0.8-48
 
 %description devel
 The header files and libraries for developing applications that use