Remove the Thunderbird miner

Same as with the Firefox miner, the Thunderbird miner is unused and is
now blocking the build on aarch64 where Thunderbird has gone missing.

tracker.spec

@@ -18,7 +18,7 @@
 
 Name:           tracker
 Version:        1.12.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Desktop-neutral search tool and indexer
 
 License:        GPLv2+
@@ -88,6 +88,7 @@ Obsoletes: compat-tracker018 < 0.17.2-2
 Obsoletes: tracker-firefox-plugin < 1.11.3-2
 Obsoletes: tracker-miner-flickr < 0.16.0
 Obsoletes: tracker-nautilus-plugin < 0.17.2-2
+Obsoletes: tracker-thunderbird-plugin < 1.12.0-2
 
 %if 0%{?fedora}
 # From rhughes-f20-gnome-3-12 copr
@@ -145,15 +146,6 @@ Tracker's nautilus plugin, provides 'tagging' functionality. Ability to perform
 search in nautilus using tracker is built-in directly in the nautilus package.
 %endif
 
-%if 0%{?with_thunderbird}
-%package thunderbird-plugin
-Summary:        Thunderbird extension to export mails to Tracker
-Requires:       %{name}%{?_isa} = %{version}-%{release}
-
-%description thunderbird-plugin
-A simple Thunderbird extension to export mails to Tracker.
-%endif
-
 %package docs
 Summary:        Documentations for tracker
 BuildArch:      noarch
@@ -191,11 +183,7 @@ sed -i -e 's|"/lib /usr/lib|"/%{_lib} %{_libdir}|' configure
            --disable-nautilus-extension \
 %endif
            --enable-libmediaart \
-%if 0%{?with_thunderbird}
-           --with-thunderbird-plugin-dir=%{_libdir}/thunderbird/extensions \
-%else
            --disable-miner-thunderbird \
-%endif
            --with-unicode-support=libicu \
            --disable-functional-tests
 # Disable the functional tests for now, they use python bytecodes.
@@ -316,13 +304,6 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %{_libdir}/nautilus/extensions-3.0/libnautilus-tracker-tags.so
 %endif
 
-%if 0%{?with_thunderbird}
-%files thunderbird-plugin
-%{_datadir}/xul-ext/trackerbird/
-%{_libdir}/thunderbird/extensions/trackerbird@bustany.org
-%{_datadir}/applications/trackerbird-launcher.desktop
-%endif
-
 %files docs
 %license docs/reference/COPYING
 %{_datadir}/gtk-doc/html/libtracker-control/
@@ -332,6 +313,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 
 
 %changelog
+* Tue Mar 21 2017 Kalev Lember <klember@redhat.com> - 1.12.0-2
+- Remove the Thunderbird miner
+
 * Tue Mar 21 2017 Kalev Lember <klember@redhat.com> - 1.12.0-1
 - Update to 1.12.0