nixpkgs: remove z3 4.5.0

Signed-off-by: Austin Seipp <aseipp@pobox.com>

pkgs/applications/science/logic/z3/4.5.0.nix

@@ -1,31 +0,0 @@
-{ stdenv, fetchFromGitHub, python2, fixDarwinDylibNames }:
-
-let
-  python = python2;
-in stdenv.mkDerivation rec {
-  name = "z3-${version}";
-  version = "4.5.0";
-
-  src = fetchFromGitHub {
-    owner  = "Z3Prover";
-    repo   = "z3";
-    rev    = "z3-4.5.0";
-    sha256 = "0ssp190ksak93hiz61z90x6hy9hcw1ywp8b2dzmbhn6fbd4bnxzp";
-  };
-
-  buildInputs = [ python fixDarwinDylibNames ];
-  enableParallelBuilding = true;
-
-  configurePhase = ''
-    ${python.interpreter} scripts/mk_make.py --prefix=$out --python --pypkgdir=$out/${python.sitePackages}
-    cd build
-  '';
-
-  meta = {
-    description = "A high-performance theorem prover and SMT solver";
-    homepage    = "https://github.com/Z3Prover/z3";
-    license     = stdenv.lib.licenses.mit;
-    platforms   = stdenv.lib.platforms.unix;
-    maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
-  };
-}

pkgs/top-level/all-packages.nix

@@ -20060,7 +20060,6 @@ with pkgs;
     gmp-static = gmp.override { withStatic = true; };
   };
 
-  z3_4_5_0 = callPackage ../applications/science/logic/z3/4.5.0.nix {};
   z3 = callPackage ../applications/science/logic/z3 { python = python2; };
 
   tlaplus = callPackage ../applications/science/logic/tlaplus {};