Merge bitcoin#21354: build, doc: Drop no longer required packages from macOS cross-compiling dependencies

f7f3829 build, doc: Drop libbz2-dev from macOS cross-compiling dependencies (Hennadii Stepanov)
d823936 build, doc: Drop libcap-dev from macOS cross-compiling dependencies (Hennadii Stepanov)

Pull request description:

  The `libcap-dev` and `libbz2-dev` packages are no longer required when cross-compiling for macOS.

ACKs for top commit:
  fanquake:
    ACK f7f3829

Tree-SHA512: 820cdc2724f3346c0942d4d4115fc7206f7bf02889d9fa6cbdbd1d9e3afa03a067c1c3fa64dff596aefdc74898178b7c7d64027a6501486e3b606f4760de04ae

Author: fanquake

ci/test/00_setup_env_mac.sh

@@ -8,7 +8,7 @@ export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_macos_cross
 export HOST=x86_64-apple-darwin
-export PACKAGES="cmake libcap-dev libz-dev libbz2-dev libtinfo5 python3-setuptools"
+export PACKAGES="cmake libz-dev libtinfo5 python3-setuptools"
 export XCODE_VERSION=12.2
 export XCODE_BUILD_ID=12B45b
 export RUN_UNIT_TESTS=false

contrib/containers/ci/Dockerfile

@@ -104,9 +104,7 @@ RUN apt-get update && apt-get install $APT_ARGS \
     g++-arm-linux-gnueabihf \
     g++-mingw-w64-x86-64 \
     jq \
-    libcap-dev \
     libz-dev \
-    libbz2-dev \
     libncurses5 \
     nsis \
     python3-zmq \

depends/README.md

@@ -47,7 +47,7 @@ The paths are automatically configured and no other options are needed unless ta
 
 #### For macOS cross compilation
 
-    sudo apt-get install curl bsdmainutils cmake libcap-dev libz-dev libbz2-dev python3-setuptools libtinfo5 xorriso
+    sudo apt-get install curl bsdmainutils cmake libz-dev python3-setuptools libtinfo5 xorriso
 
 Note: You must obtain the macOS SDK before proceeding with a cross-compile.
 Under the depends directory, create a subdirectory named `SDKs`.