Revert of Export various dbus::Property template specializations.

Revert of Export various dbus::Property template specializations. (patchset #2 id:20001 of https://codereview.chromium.org/1339763003/ )

Reason for revert:
Does not compile with component=shared_library with CrOS compiler

../../dbus/property.h:437:42: error: type attributes ignored after type is already defined [-Werror=attributes]
 extern template class CHROME_DBUS_EXPORT Property<uint8>;
                                          ^
../../dbus/property.h:447:42: error: type attributes ignored after type is already defined [-Werror=attributes]
 extern template class CHROME_DBUS_EXPORT Property<bool>;

Repro steps:
  cros chrome-sdk --board=amd64-generic --component
  gclient runhooks
  ninja -C out_amd64-generic/Release dbus

Original issue's description:
> Export various dbus::Property template specializations.
>
> BUG=409111
> R=stevenjb@chromium.org
>
> Committed: https://chromium.googlesource.com/chromium/src/+/40855d43fa71c215829b53a1034b1b653b4b8557

TBR=stevenjb@chromium.org,thakis@chromium.org,dcheng@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=409111
Committed: https://crrev.com/95f15875106062c4dd3c5927be7f6ee5775eb78a
Cr-Commit-Position: refs/heads/master@{#348651}

[spang, 2015-09-14 17:46:56]

Created Revert of Export various dbus::Property template specializations.

[commit-bot: I haz the power, 2015-09-14 17:48:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1337113005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1337113005/1

[spang, 2015-09-14 17:48:47]

The CQ bit was unchecked by spang@chromium.org

[spang, 2015-09-14 17:48:48]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-09-14 17:49:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1337113005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1337113005/1

[commit-bot: I haz the power, 2015-09-14 17:49:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-14 17:50:20]

Patchset 1 (id:??) landed as
https://crrev.com/95f15875106062c4dd3c5927be7f6ee5775eb78a
Cr-Commit-Position: refs/heads/master@{#348651}

[commit-bot: I haz the power, 2015-09-23 12:34:03]

Patchset 1 (id:??) landed as
https://crrev.com/95f15875106062c4dd3c5927be7f6ee5775eb78a
Cr-Commit-Position: refs/heads/master@{#348651}