Do not freeze egg version in components.

This has to be done on software level.

component/w3m/buildout.cfg

@@ -50,7 +50,3 @@ environment =
   PKG_CONFIG_PATH=${openssl:location}/lib/pkgconfig
   CPPFLAGS=-I${ncurses:location}/include/ -I${zlib:location}/include/
   LDFLAGS=-Wl,--as-needed -L${garbage-collector:location}/lib -Wl,-rpath=${garbage-collector:location}/lib -L${ncurses:location}/lib -Wl,-rpath=${ncurses:location}/lib -L${openssl:location}/lib -Wl,-rpath=${openssl:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
-
-[versions]
-# Use SlapOS patched zc.buildout
-zc.buildout = 1.5.3-dev-SlapOS-005

component/xtrabackup/buildout.cfg

@@ -51,7 +51,3 @@ environment =
   PATH=${autoconf:location}/bin:${automake-1.11:location}/bin:${libtool:location}/bin:${flex:location}/bin:%(PATH)s:${bison:location}/bin
 make-options =
   -j1
-
-[versions]
-# Use SlapOS patched zc.buildout
-zc.buildout = 1.5.3-dev-SlapOS-001