diff --git a/dom/Makefile.in b/dom/Makefile.in
index d0a56b35e18..5ea49bab9c8 100644
--- a/dom/Makefile.in
+++ b/dom/Makefile.in
@@ -77,7 +77,6 @@ endif
 DIRS += \
   base \
   battery \
-  power \
   sms \
   src \
   locales \
diff --git a/dom/dom-config.mk b/dom/dom-config.mk
index ac61255020c..710c69327c2 100644
--- a/dom/dom-config.mk
+++ b/dom/dom-config.mk
@@ -1,7 +1,6 @@
 DOM_SRCDIRS = \
   dom/base \
   dom/battery \
-  dom/power \
   dom/network/src \
   dom/sms/src \
   dom/src/events \
diff --git a/dom/power/Makefile.in b/dom/power/Makefile.in
deleted file mode 100644
index ed5451cd1ae..00000000000
--- a/dom/power/Makefile.in
+++ /dev/null
@@ -1,61 +0,0 @@
-# ***** BEGIN LICENSE BLOCK *****
-# Version: MPL 1.1/GPL 2.0/LGPL 2.1
-#
-# The contents of this file are subject to the Mozilla Public License Version
-# 1.1 (the "License"); you may not use this file except in compliance with
-# the License. You may obtain a copy of the License at
-# http://www.mozilla.org/MPL/
-#
-# Software distributed under the License is distributed on an "AS IS" basis,
-# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
-# for the specific language governing rights and limitations under the
-# License.
-#
-# The Original Code is mozilla.org build system.
-#
-# The Initial Developer of the Original Code is Mozilla Foundation
-# Portions created by the Initial Developer are Copyright (C) 2011
-# the Initial Developer. All Rights Reserved.
-#
-# Contributor(s):
-#   Kan-Ru Chen <kchen@mozilla.com> (Original Author)
-#
-# Alternatively, the contents of this file may be used under the terms of
-# either the GNU General Public License Version 2 or later (the "GPL"), or
-# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
-# in which case the provisions of the GPL or the LGPL are applicable instead
-# of those above. If you wish to allow use of your version of this file only
-# under the terms of either the GPL or the LGPL, and not to allow others to
-# use your version of this file under the terms of the MPL, indicate your
-# decision by deleting the provisions above and replace them with the notice
-# and other provisions required by the GPL or the LGPL. If you do not delete
-# the provisions above, a recipient may use your version of this file under
-# the terms of any one of the MPL, the GPL or the LGPL.
-#
-# ***** END LICENSE BLOCK *****
-
-DEPTH            = ../..
-topsrcdir        = @top_srcdir@
-srcdir           = @srcdir@
-VPATH            = @srcdir@
-
-include $(DEPTH)/config/autoconf.mk
-
-LIBRARY_NAME     = dom_power_s
-XPIDL_MODULE     = dom_power
-LIBXUL_LIBRARY   = 1
-FORCE_STATIC_LIB = 1
-
-include $(topsrcdir)/dom/dom-config.mk
-
-CPPSRCS = \
-  $(NULL)
-
-XPIDLSRCS = \
-  $(NULL)
-
-ifdef ENABLE_TESTS
-DIRS += test
-endif
-
-include $(topsrcdir)/config/rules.mk
diff --git a/dom/power/test/Makefile.in b/dom/power/test/Makefile.in
deleted file mode 100644
index 90ce3fbc3ba..00000000000
--- a/dom/power/test/Makefile.in
+++ /dev/null
@@ -1,58 +0,0 @@
-# ***** BEGIN LICENSE BLOCK *****
-# Version: MPL 1.1/GPL 2.0/LGPL 2.1
-#
-# The contents of this file are subject to the Mozilla Public License Version
-# 1.1 (the "License"); you may not use this file except in compliance with
-# the License. You may obtain a copy of the License at
-# http://www.mozilla.org/MPL/
-#
-# Software distributed under the License is distributed on an "AS IS" basis,
-# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
-# for the specific language governing rights and limitations under the
-# License.
-#
-# The Original Code is mozilla.org build system.
-#
-# The Initial Developer of the Original Code is Mozilla Foundation
-# Portions created by the Initial Developer are Copyright (C) 2011
-# the Initial Developer. All Rights Reserved.
-#
-# Contributor(s):
-#   Kan-Ru Chen <kchen@mozilla.com> (Original Author)
-#
-# Alternatively, the contents of this file may be used under the terms of
-# either the GNU General Public License Version 2 or later (the "GPL"), or
-# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
-# in which case the provisions of the GPL or the LGPL are applicable instead
-# of those above. If you wish to allow use of your version of this file only
-# under the terms of either the GPL or the LGPL, and not to allow others to
-# use your version of this file under the terms of the MPL, indicate your
-# decision by deleting the provisions above and replace them with the notice
-# and other provisions required by the GPL or the LGPL. If you do not delete
-# the provisions above, a recipient may use your version of this file under
-# the terms of any one of the MPL, the GPL or the LGPL.
-#
-# ***** END LICENSE BLOCK *****
-
-DEPTH            = ../../..
-topsrcdir        = @top_srcdir@
-srcdir           = @srcdir@
-VPATH            = @srcdir@
-
-relativesrcdir   = dom/power/test
-
-include $(DEPTH)/config/autoconf.mk
-
-DIRS = \
-  $(NULL)
-
-include $(topsrcdir)/config/rules.mk
-
-_TEST_FILES = \
-  $(NULL)
-
-#libs:: $(_TEST_FILES)
-# 	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/tests/$(relativesrcdir)
-
-#libs:: $(_CHROME_TEST_FILES)
-#	$(INSTALL) $(foreach f,$^,"$f") $(DEPTH)/_tests/testing/mochitest/chrome/$(relativesrcdir)