otool: remove

The `otool` binary is provided by the `cctools` package (and `binutils`)
on darwin, which is properly packaged and compiled from source.

This old standalone `otool` was simply a symlink to `/usr/bin/otool`,
which notably depended on the user having already installed the Command
Line Tools via XCode, and would fail dependent builds if they hadn't.

pkgs/os-specific/darwin/otool/default.nix

@@ -1,39 +0,0 @@
-{ stdenv }:
-
-assert stdenv.isDarwin;
-/*  this tool only exists on darwin
-    NOTE: it might make sense to compile this from source (maybe it even works for non-darwin)
-    I see cctools source is under GPL2+ as well as APSL 2.0
-    http://opensource.apple.com/release/developer-tools-46/
-*/
-
-stdenv.mkDerivation {
-  name = "otool";
-
-  src = "/usr/bin/otool";
-
-  unpackPhase = "true";
-  configurePhase = "true";
-  buildPhase = "true";
-
-  installPhase = ''
-    mkdir -p "$out/bin"
-    ln -s $src "$out/bin"
-  '';
-
-  meta = with stdenv.lib; {
-    description = "Object file displaying tool";
-    homepage    = https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/otool.1.html;
-    license     = with licenses; [ apsl20 gpl2Plus ];
-    maintainers = with maintainers; [ lovek323 ];
-    platforms   = platforms.darwin;
-
-    longDescription = ''
-      The otool command displays specified parts of object files or libraries.
-      If the, -m option is not used, the file arguments may be of the form
-      libx.a(foo.o), to request information about only that object file and not
-      the entire library.
-    '';
-  };
-}
-

pkgs/top-level/all-packages.nix

@@ -633,8 +633,6 @@ let
 
   lastpass-cli = callPackage ../tools/security/lastpass-cli { };
 
-  otool = callPackage ../os-specific/darwin/otool { };
-
   pass = callPackage ../tools/security/pass { };
 
   oracle-instantclient = callPackage ../development/libraries/oracle-instantclient { };