Remove check-examples from CI (#1352)

This PR is a post-cleanup task following #1351 for CI to reflect the
removal of the `examples` directory.

Verifing [a CI run against this
branch](https://github.com/awslabs/aws-sdk-rust/actions/runs/17587814067)

---

By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice.

Author: ysaito1001

.github/workflows/ci.yaml

@@ -68,59 +68,6 @@ jobs:
         with:
           jobs: ${{ toJSON(needs) }}
 
-  generate-check-examples-matrix:
-    runs-on: ubuntu-latest
-    name: Generate Check Matrix (examples)
-    steps:
-      - uses: actions/checkout@v3
-      - name: Generate the matrix
-        id: generate-matrix
-        # Run the `crate-range.py` script to calculate a matrix for the `check-examples` job.
-        # This script outputs JSON that GitHub Actions can consume as a matrix definition.
-        # Rust versions to check against are arguments to this script.
-        run: echo "matrix=$(./tools/ci/crate-range.py generate-matrix -b ${EXAMPLES_BATCH_COUNT} --folder examples ${RUST_VERSIONS})" >> "${GITHUB_OUTPUT}"
-    outputs:
-      matrix: ${{ steps.generate-matrix.outputs.matrix }}
-
-  check-examples:
-    needs: generate-check-examples-matrix
-    runs-on: ubuntu-latest
-    name: Check Examples
-    env:
-      CARGO_INCREMENTAL: "0"
-      RUSTFLAGS: ""
-      RUSTDOCFLAGS: ""
-    strategy:
-      # Use the matrix generated by the previous job
-      matrix: ${{ fromJson(needs.generate-check-examples-matrix.outputs.matrix) }}
-    steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ matrix.rust_version }}
-          targets: wasm32-unknown-unknown
-      # Pinned to the commit hash of v2.1.0
-      - uses: Swatinem/rust-cache@b894d59a8d236e2979b247b80dac8d053ab340dd
-        with:
-          shared-key: check
-      - name: Cargo Check
-        run: ./tools/ci/crate-range.py run ${{ matrix.crate_range }} --folder examples -- cargo check --all-features
-
-  # Psuedo-job that depends on the check job so that we don't have to enter
-  # the myriad of crate range combinations into GitHub's protected branch rules
-  require-check-examples:
-    needs: check-examples
-    # Run this job even if its dependency jobs fail
-    if: always()
-    runs-on: ubuntu-latest
-    name: Check Matrix Success (examples)
-    steps:
-      - name: Verify jobs succeeded
-        # Pinned to commit hash of v1.2.2
-        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe
-        with:
-          jobs: ${{ toJSON(needs) }}
-
   check-manifests:
     runs-on: ubuntu-latest
     steps:

tools/ci/crate-range.py

@@ -10,14 +10,14 @@
 #
 # generate-matrix
 #
-#   This sub-command counts the total number of crates in the SDK (including examples),
+#   This sub-command counts the total number of crates in the SDK,
 #   and creates a set of batches based on that size in a format that GitHub Actions
 #   can consume as a matrix strategy.
 #
 # run
 #
 #   This sub-command will run the given command on the given crate range.
-#   It deterministically distributes the SDK crates (including examples) fairly across
+#   It deterministically distributes the SDK crates fairly across
 #   the batch range by counting lines of code in attempt to keep batches with roughly
 #   the same workloads.
 #
@@ -109,7 +109,7 @@ def organize_crate_list(batch_count, crates):
     return result
 
 
-# Lists all SDK crates including examples
+# Lists all SDK crates
 def list_crates(repository_root, path):
     to_examine = []
     to_examine.extend(list(map(lambda p: f"{repository_root}/{path}/{p}", os.listdir(f"{repository_root}/{path}"))))
@@ -179,15 +179,15 @@ def main():
     subparser_generate_matrix = subparsers.add_parser("generate-matrix", help="Generate a test matrix")
     subparser_generate_matrix.add_argument("rust_versions", type=str, nargs=argparse.ONE_OR_MORE)
     subparser_generate_matrix.add_argument("-b", type=int, dest="batches", required=True, help="Number of batches")
-    subparser_generate_matrix.add_argument("--folder", required=True, type=str, choices=["sdk", "examples"],
+    subparser_generate_matrix.add_argument("--folder", required=True, type=str, choices=["sdk"],
                                            help="Name of the folder containing the crates you want to generate a "
                                                 "matrix for") 
 
     subparser_run = subparsers.add_parser("run", help="Run command on crate range")
     subparser_run.add_argument("-b", required=True, type=int, dest="batches", help="Number of batches")
     subparser_run.add_argument("-s", required=True, type=int, dest="start_inclusive", help="Range start inclusive")
     subparser_run.add_argument("-e", required=True, type=int, dest="end_exclusive", help="Range end exclusive")
-    subparser_run.add_argument("--folder", required=True, type=str, choices=["sdk", "examples"],
+    subparser_run.add_argument("--folder", required=True, type=str, choices=["sdk"],
                                help="Name of the folder containing the crates you want to run a command on")
     subparser_run.add_argument("cmd", type=str, nargs=argparse.ONE_OR_MORE)