Bug 1620779 - Use built-in cargo vendor to vendor wrench / wgpu.

We were using the old cargo-vendor, which tries to fetch dependencies in a way
that crates.io dislikes, leading to spurious timeouts.

Use the built-in command instead. We no longer need the --relative-path flag
because the built-in one uses a relative path by default.

MANUAL PUSH: Fixing tree closure, so need to push on CLOSED TREE.

Differential Revision: https://phabricator.services.mozilla.com/D65882

taskcluster/scripts/misc/wgpu-deps-vendoring.sh

@@ -10,10 +10,9 @@ UPLOAD_DIR=$HOME/artifacts
 
 cd $GECKO_PATH
 export PATH=$PATH:$MOZ_FETCHES_DIR/rustc/bin:$HOME/.cargo/bin
-cargo install --version 0.1.23 cargo-vendor
 cd gfx/wgpu/
 mkdir .cargo
-cargo-vendor vendor --relative-path --sync ./Cargo.toml > .cargo/config
+cargo vendor --sync ./Cargo.toml > .cargo/config
 mkdir wgpu-deps
 mv vendor .cargo wgpu-deps/
 mkdir wgpu-deps/cargo-apk

taskcluster/scripts/misc/wrench-deps-vendoring.sh

@@ -10,10 +10,9 @@ UPLOAD_DIR=$HOME/artifacts
 
 cd $GECKO_PATH
 export PATH=$PATH:$MOZ_FETCHES_DIR/rustc/bin:$HOME/.cargo/bin
-cargo install --version 0.1.23 cargo-vendor
 cd gfx/wr/
 mkdir .cargo
-cargo-vendor vendor --relative-path --sync ./Cargo.toml > .cargo/config
+cargo vendor --sync ./Cargo.toml > .cargo/config
 mkdir wrench-deps
 mv vendor .cargo wrench-deps/
 mkdir wrench-deps/cargo-apk