diff --git a/Makefile.in b/Makefile.in
index febccd5ecb1e..6292d5b349ee 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -35,7 +35,7 @@ GARBAGE_DIRS += config.statusd
 DIST_GARBAGE = config.cache config.log config.status config-defs.h \
    config/autoconf.mk \
    mozilla-config.h \
-   xpcom/xpcom-config.h xpcom/xpcom-private.h \
+   xpcom/xpcom-config.h \
    .mozconfig.mk
 
 ifneq (mobile/android,$(MOZ_BUILD_APP))
diff --git a/xpcom/components/nsComponentManager.h b/xpcom/components/nsComponentManager.h
index 3f906b68ad36..51b041ba8dc8 100644
--- a/xpcom/components/nsComponentManager.h
+++ b/xpcom/components/nsComponentManager.h
@@ -9,7 +9,6 @@
 
 #include "nsXPCOM.h"
 
-#include "xpcom-private.h"
 #include "nsIComponentManager.h"
 #include "nsIComponentRegistrar.h"
 #include "nsIMemoryReporter.h"
diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
index 17f0648dbca1..c36c7b7291ab 100644
--- a/xpcom/io/nsLocalFileUnix.cpp
+++ b/xpcom/io/nsLocalFileUnix.cpp
@@ -38,7 +38,6 @@
 #  endif
 #endif
 
-#include "xpcom-private.h"
 #include "nsDirectoryServiceDefs.h"
 #include "nsCRT.h"
 #include "nsCOMPtr.h"
diff --git a/xpcom/io/nsNativeCharsetUtils.cpp b/xpcom/io/nsNativeCharsetUtils.cpp
index 5184c47f503b..847ae3666c1e 100644
--- a/xpcom/io/nsNativeCharsetUtils.cpp
+++ b/xpcom/io/nsNativeCharsetUtils.cpp
@@ -4,8 +4,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#include "xpcom-private.h"
-
 //-----------------------------------------------------------------------------
 // Non-Windows
 //-----------------------------------------------------------------------------
diff --git a/xpcom/moz.build b/xpcom/moz.build
index b62fdaf3e828..c12a9e329b34 100644
--- a/xpcom/moz.build
+++ b/xpcom/moz.build
@@ -40,7 +40,6 @@ TEST_DIRS += [
 
 CONFIGURE_DEFINE_FILES += [
     'xpcom-config.h',
-    'xpcom-private.h',
 ]
 
 EXPORTS += [
diff --git a/xpcom/xpcom-private.h.in b/xpcom/xpcom-private.h.in
deleted file mode 100644
index d089d1ec5076..000000000000
--- a/xpcom/xpcom-private.h.in
+++ /dev/null
@@ -1,38 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/* The following defines are only used by the xpcom implementation */
-
-#ifndef _XPCOM_PRIVATE_H_
-#define _XPCOM_PRIVATE_H_
-
-/* Define if getpagesize() is available */
-#undef HAVE_GETPAGESIZE
-
-/* Define if statvfs64() is available */
-#undef HAVE_STATVFS64
-
-/* Define if statvfs() is available */
-#undef HAVE_STATVFS
-
-/* Define if statfs64() is available */
-#undef HAVE_STATFS64
-
-/* Define if statfs() is available */
-#undef HAVE_STATFS
-
-/* Define if <sys/statvfs.h> is present */
-#undef HAVE_SYS_STATVFS_H
-
-/* Define if <sys/statfs.h> is present */
-#undef HAVE_SYS_STATFS_H
-
-/* Define if <sys/vfs.h> is present */
-#undef HAVE_SYS_VFS_H
-
-/* Define if <sys/mount.h> is present */
-#undef HAVE_SYS_MOUNT_H
-
-#endif /* _XPCOM_PRIVATE_H_ */
-