Merge #16352: build: prune dbus from depends

e8fabd9 build: prune dbus from depends (fanquake)

Pull request description:

  Since #8210 (59d063d), we've been passing `-dbus-runtime` when configuring Qt.

  ```
  qtbase-opensource-src-5.9.7 $ ./configure -h | grep -i dbus
    -no-dbus ............. Do not build the Qt D-Bus module
    -dbus-linked ......... Build Qt D-Bus and link to libdbus-1 [auto]
    -dbus-runtime ........ Build Qt D-Bus and dynamically load libdbus-1 [no]
  ```

  This means we don't actually seem to be using the `D-Bus` we build in depends. This was pointed out by theuni at the time, [here](bitcoin/bitcoin#7993 (comment)) and [here](bitcoin/bitcoin#8210 (comment)), but was never followed up. dongcarl also bought it up as part of #16150.

  I've tested building and running `bitcoin-qt` using depends on Debian. Needs further testing.

ACKs for top commit:
  laanwj:
    code review ACK e8fabd9

Tree-SHA512: 164e6e52b6f97c04aef42bd185e2a157bc1a42103840f9404c5a795749f45a8c2c35f35873395a3a56398b3cd5955496b90d9c885d929b434c9bc871695abe20

Author: laanwj

depends/packages/dbus.mk

@@ -3,7 +3,7 @@ packages:=boost openssl libevent
 qt_native_packages = native_protobuf
 qt_packages = qrencode protobuf zlib
 
-qt_linux_packages:=qt expat dbus libxcb xcb_proto libXau xproto freetype fontconfig libX11 xextproto libXext xtrans
+qt_linux_packages:=qt expat libxcb xcb_proto libXau xproto freetype fontconfig libX11 xextproto libXext xtrans
 
 rapidcheck_packages = rapidcheck
 

depends/packages/packages.mk

@@ -8,7 +8,6 @@ These are the dependencies currently used by Bitcoin Core. You can find instruct
 | Berkeley DB | [4.8.30](https://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 4.8.x | No |  |  |
 | Boost | [1.70.0](https://www.boost.org/users/download/) | [1.47.0](https://github.com/bitcoin/bitcoin/pull/8920) | No |  |  |
 | Clang |  | [3.3+](https://llvm.org/releases/download.html) (C++11 support) |  |  |  |
-| D-Bus | [1.10.18](https://cgit.freedesktop.org/dbus/dbus/tree/NEWS?h=dbus-1.10) |  | No | Yes |  |
 | Expat | [2.2.6](https://libexpat.github.io/) |  | No | Yes |  |
 | fontconfig | [2.12.1](https://www.freedesktop.org/software/fontconfig/release/) |  | No | Yes |  |
 | FreeType | [2.7.1](https://download.savannah.gnu.org/releases/freetype) |  | No |  |  |