Revert "Java 17 and install dependencies"

This reverts commit e6d3d10.

Author: robin-aws

.github/actions/install_smithy_dafny_codegen_dependencies/action.yml

@@ -0,0 +1,21 @@
+#
+# This local action sets up code dependencies
+# to run Smithy-Dafny CI in GitHub Actions workflows.
+#
+
+name: "Install Smithy-Dafny codegen dependencies"
+description: "Install Java package dependencies required to run Smithy-Dafny codegen"
+runs:
+  using: "composite"
+  steps:
+    - name: Install smithy-dafny-codegen Rust dependencies locally
+      uses: gradle/gradle-build-action@v2
+      with:
+        arguments: :codegen-client:pTML :codegen-core:pTML :rust-runtime:pTML
+        build-root-directory: submodules/smithy-dafny/smithy-dafny-codegen-modules/smithy-rs
+
+    - name: Install smithy-dafny-codegen Python dependencies locally
+      uses: gradle/gradle-build-action@v2
+      with:
+        arguments: :smithy-python-codegen:pTML
+        build-root-directory: submodules/smithy-dafny/codegen/smithy-dafny-codegen-modules/smithy-python/codegen

.github/actions/polymorph_codegen/action.yml

@@ -66,17 +66,6 @@ runs:
         git pull
         git submodule update --init --recursive
 
-    - name: Setup Java 17 for smithy-dafny
-      uses: actions/setup-java@v3
-      with:
-        distribution: "corretto"
-        java-version: 17
-
-    - name: Install smithy-dafny dependencies locally
-      shell: bash
-      run: |
-        make -C submodules/smithy-dafny mvn_local_deploy_polymorph_dependencies
-
     - name: Update top-level project.properties file in MPL
       if: inputs.update-and-regenerate-mpl == 'true'
       shell: bash