build: Drop old .gitignore files from test directories

They just listed built files. Since the move to Meson, these are all
kept in a separate build directory, not the source tree, so don’t need
to be ignored.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

gio/tests/.gitignore

@@ -1,146 +0,0 @@
-actions
-appinfo
-appinfo-test
-appmonitor
-apps
-async-close-output-stream
-async-splice-output-stream
-autoptr
-basic-application
-buffered-input-stream
-buffered-output-stream
-cancellable
-connectable
-contenttype
-contexts
-converter-stream
-credentials
-data-input-stream
-data-output-stream
-dbus-appinfo
-dbus-launch
-de/
-defaultvalue
-desktop-app-info
-echo-server
-file
-fileattributematcher
-filter-cat
-filter-streams
-gapplication
-gapplication-example-actions
-gapplication-example-cmdline
-gapplication-example-cmdline2
-gapplication-example-cmdline3
-gapplication-example-dbushooks
-gapplication-example-menu
-gapplication-example-open
-gdbus-addresses
-gdbus-auth
-gdbus-bz627724
-gdbus-close-pending
-gdbus-connection
-gdbus-connection-flush
-gdbus-connection-flush-helper
-gdbus-connection-loss
-gdbus-connection-slow
-gdbus-daemon
-gdbus-error
-gdbus-example-export
-gdbus-example-objectmanager-client
-gdbus-example-objectmanager-server
-gdbus-example-own-name
-gdbus-example-peer
-gdbus-example-proxy-subclass
-gdbus-example-server
-gdbus-example-subtree
-gdbus-example-unix-fd-client
-gdbus-example-watch-name
-gdbus-example-watch-proxy
-gdbus-exit-on-close
-gdbus-export
-gdbus-introspection
-gdbus-message
-gdbus-names
-gdbus-non-socket
-gdbus-overflow
-gdbus-peer
-gdbus-peer-object-manager
-gdbus-proxy
-gdbus-proxy-threads
-gdbus-proxy-well-known-name
-gdbus-serialization
-gdbus-test-codegen
-gdbus-test-codegen-generated*
-gdbus-test-codegen-old
-gdbus-test-fixture
-gdbus-testserver
-gdbus-threading
-gdbus-address-get-session
-glistmodel
-gio-du
-giomodule
-giotypefuncs.inc
-gnotification
-gsubprocess
-gsubprocess-testprog
-g-file
-g-file-info
-g-icon
-gmenumodel
-gschemas.compiled
-gsettings
-gsettings.store
-httpd
-icons
-inet-address
-io-stream
-live-g-file
-memory-input-stream
-memory-output-stream
-mimeapps
-monitor
-network-address
-network-monitor
-org.gtk.test.enums.xml
-org.gtk.test.gschema.xml
-permission
-pollable
-plugin_resources.c
-proxy
-proxy-test
-readwrite
-resolver
-resources
-send-data
-services/org.gtk.GDBus.Examples.ObjectManager.service
-simple-async-result
-simple-proxy
-sleepy-stream
-stream-rw_all
-socket
-socket-address
-socket-client
-socket-listener
-socket-service
-socket-server
-srvtarget
-task
-test-generated.txt
-test.gresource
-test.mo
-test_resources.c
-test_resources2.c
-test_resources2.h
-testfilemonitor
-thumbnail-verification
-tls-certificate
-tls-database
-tls-interaction
-unix-fd
-unix-streams
-vfs
-volumemonitor
-xgen-gio
-xgen-giosrc.c
-gresource-big-test.txt