Linux: Remove mtpd and related libraries from the build.

DEPS

 # This file is automatically processed to create .DEPS.git which is the file
 # that gclient uses under git.
 #
 # See http://code.google.com/p/chromium/wiki/UsingGit
 #
 # To test manually, run:
 #   python tools/deps2git/deps2git.py -o .DEPS.git
 #   gclient runhooks
 # DO NOT CHECK IN CHANGES TO .DEPS.git. It will be automatically updated by
 # a bot when you modify this one.
@@ skipping 451 matching lines @@
     "src/third_party/swig/linux":
       "/trunk/deps/third_party/swig/linux@" + Var("swig_revision"),
 
     "src/third_party/lss":
       ((Var("googlecode_url") % "linux-syscall-support") + "/trunk/lss@" +
        Var("lss_revision")),
 
     "src/third_party/gold":
       "/trunk/deps/third_party/gold@228995",
 
-    "src/third_party/libmtp":
-      "/trunk/deps/third_party/libmtp@206535",
-
-    # Used on Linux only. CrOS already has a copy.
-    "src/third_party/mtpd/source":
-      Var("chromiumos_git") + "/platform/mtpd.git" +
-      "@f9759da3a7cd95080414a7da0d899c47cad794f2",
-
-    # Used on Linux only. CrOS already has a copy.
-    "src/third_party/cros_dbus_cplusplus/source":
-      Var("chromiumos_git") + "/third_party/dbus-cplusplus.git" +
-      "@f78453e0ba9f3d1584e8873aa3c7437cec861ce0",
-
     # For Linux and Chromium OS.
     "src/third_party/cros_system_api":
       Var("chromiumos_git") + "/platform/system_api.git" +
       "@844a42e5f5c7a106807b09b6c2ac6b00b166c1cc",
 
     # Note that this is different from Android's freetype repo.
     "src/third_party/freetype2/src":
       Var("chromium_git") + "/chromium/src/third_party/freetype2.git" +
       "@d699c2994ecc178c4ed05ac2086061b2034c2178",
 
@@ skipping 260 matching lines @@
                 "-s", "src/build/linux/bin/eu-strip.sha1",
     ],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "name": "gyp",
     "pattern": ".",
     "action": ["python", "src/build/gyp_chromium"],
   },
 ]