Revert "Merge pull request #441 from nevans/workaround-linker-script-so"

This reverts commit 4ccf128, reversing
changes made to a265141.

Author: st0012

lib/reline/terminfo.rb

@@ -24,8 +24,7 @@ def self.curses_dl_files
     when /darwin/
       %w[libncursesw.dylib libcursesw.dylib libncurses.dylib libcurses.dylib]
     else
-      %w[libncursesw.so libcursesw.so libncurses.so libcurses.so
-         libncursesw.so.6 libncurses.so.6]
+      %w[libncursesw.so libcursesw.so libncurses.so libcurses.so]
     end
   end