aws/endpoints: Remove types used for exposing iteration types over partitions, regions, and service models.

CHANGELOG_PENDING.md

@@ -1,7 +1,9 @@
 Breaking Change
 ---
+* `aws/endpoints`: Several functions and types have been removed
+  * Removes `DecodeModel` and `DecodeModelOptions` from the package ([#509](https://github.com/aws/aws-sdk-go-v2/pull/509))
+  * Remove Region Constants, Partition Constants, and types use for exploring the endpoint data model ([#512](https://github.com/aws/aws-sdk-go-v2/pull/512))
 * `service/s3/s3crypto`: Package and associated encryption/decryption clients have been removed from the SDK ([#511](https://github.com/aws/aws-sdk-go-v2/pull/511))
-* `aws/endpoints`: Removes `DecodeModel` and `DecodeModelOptions` from the package ([#509](https://github.com/aws/aws-sdk-go-v2/pull/509))
 * `aws/external`: Removes several export constants and types ([#508](https://github.com/aws/aws-sdk-go-v2/pull/508))
   * No longer exports AWS environment constants used by the external environment configuration loader
   * `DefaultSharedConfigProfile` is now defined an exported constant

Makefile

@@ -27,7 +27,7 @@ all: generate unit
 ###################
 # Code Generation #
 ###################
-generate: cleanup-models gen-test gen-endpoints gen-services gen-external-asserts gen-tools
+generate: cleanup-models gen-test gen-endpoints gen-services gen-external-asserts
 
 gen-test: gen-protocol-test gen-codegen-test
 
@@ -55,9 +55,6 @@ gen-external-asserts:
 	@echo "Generating SDK external package implementor assertions"
 	go generate ./aws/external
 
-gen-tools:
-	go generate -tags sdktool ./internal/awstesting/cmd/op_crawler/
-
 cleanup-models:
 	@echo "Cleaning up stale model versions"
 	@./cleanup_models.sh