Revert "Python 3.5: add less"

This reverts commit e261818c68 and
others. Having Python propagate less really doesn't make sense.

pkgs/development/interpreters/python/cpython/3.3/default.nix

@@ -2,7 +2,6 @@
 , bzip2
 , db
 , gdbm
-, less
 , libX11, xproto
 , lzma
 , ncurses
@@ -29,10 +28,6 @@ let
     zlib bzip2 lzma gdbm sqlite db readline ncurses openssl tcl tk libX11 xproto
   ];
 
-  propagatedBuildInputs = [
-    less
-  ];
-
 in
 stdenv.mkDerivation {
   name = "python3-${version}";

pkgs/development/interpreters/python/cpython/3.4/default.nix

@@ -2,7 +2,6 @@
 , bzip2
 , db
 , gdbm
-, less
 , libX11, xproto
 , lzma
 , ncurses
@@ -44,10 +43,6 @@ let
     xproto
   ] ++ optionals stdenv.isDarwin [ CF configd ];
 
-  propagatedBuildInputs = [
-    less
-  ];
-
 in
 stdenv.mkDerivation {
   name = "python3-${fullVersion}";

pkgs/development/interpreters/python/cpython/3.5/default.nix

@@ -2,7 +2,6 @@
 , bzip2
 , db
 , gdbm
-, less
 , libX11, xproto
 , lzma
 , ncurses
@@ -43,11 +42,6 @@ let
     libX11
     xproto
   ] ++ optionals stdenv.isDarwin [ CF configd ];
-
-  propagatedBuildInputs = [
-    less
-  ];
-
 in
 stdenv.mkDerivation {
   name = "python3-${fullVersion}";
@@ -55,7 +49,6 @@ stdenv.mkDerivation {
   inherit majorVersion version;
 
   inherit buildInputs;
-  inherit propagatedBuildInputs;
 
   src = fetchurl {
     url = "http://www.python.org/ftp/python/${version}/Python-${fullVersion}.tar.xz";

pkgs/development/interpreters/python/cpython/3.6/default.nix

@@ -3,7 +3,6 @@
 , bzip2
 , db
 , gdbm
-, less
 , libX11, xproto
 , lzma
 , ncurses
@@ -45,11 +44,6 @@ let
     libX11
     xproto
   ] ++ optionals stdenv.isDarwin [ CF configd ];
-
-  propagatedBuildInputs = [
-    less
-  ];
-
 in
 stdenv.mkDerivation {
   name = "python3-${fullVersion}";
@@ -57,7 +51,6 @@ stdenv.mkDerivation {
   inherit majorVersion version;
 
   inherit buildInputs;
-  inherit propagatedBuildInputs;
 
   src = fetchurl {
     url = "https://www.python.org/ftp/python/${majorVersion}.0/Python-${fullVersion}.tar.xz";