Remove SDK's vendored dependencies (#3118)

Updates the SDK's Go module definition to enumerate all dependencies of
the SDK and its components. SDK's repository root package has been
updated to refer to runtime dependencies like `go-jmespath` for `go get`
the SDK with Go without modules.

* Remove deprecated `awsmigrate` utility.

Removes the deprecated `awsmigrate` utility from the SDK's repository.
This utility is no longer relevant. The utility allowed users the beta
pre-release v0 SDK to update to the v1.0 released version of the SDK.

.travis.yml

@@ -6,6 +6,7 @@ os:
     - linux
     - osx
 go:
+    - 1.5.x
     - 1.6.x
     - 1.7.x
     - 1.8.x
@@ -25,37 +26,40 @@ matrix:
           # https://github.com/travis-ci/travis-ci/issues/10309
         - go: 1.6.x
           os: osx
+        - go: 1.5.x
+          os: osx
     include:
         - os: windows
           go: 1.12.x
         - os: windows
           go: 1.13.x
         - os: windows
           go: tip
-        - os: linux
-          go: 1.5.x
-          # Use Go 1.5's vendoring experiment for 1.5 tests.
-          env: GO15VENDOREXPERIMENT=1
 
 before_install:
   - if [ "$TRAVIS_OS_NAME" = "windows" ]; then choco install make; fi
 
 script:
-  - if [ "$TRAVIS_OS_NAME" = "windows" ]; then
+  - if [ -z $(go env GOMOD) ]; then
+      if [ "$TRAVIS_GO_VERSION" == "1.12.x" ] ||
+          [ "$TRAVIS_GO_VERSION" == "1.11.x" ] ||
+          [ "$TRAVIS_GO_VERSION" == "1.10.x" ]; then
+        make get-deps-x-tests;
+      fi;
       make get-deps;
-      make unit-no-verify;
-    else
-      if [ $TRAVIS_GO_VERSION == "1.10.x" ] ||
-      [ $TRAVIS_GO_VERSION == "1.11.x" ] ||
-      [ $TRAVIS_GO_VERSION == "1.12.x" ] ||
-      [ $TRAVIS_GO_VERSION == "1.13.x" ] ||
-      [ $TRAVIS_GO_VERSION == "tip" ]; then
-          make get-deps;
-          make ci-test;
+    fi;
+    if [ "$TRAVIS_GO_VERSION" == "tip" ] ||
+        [ "$TRAVIS_GO_VERSION" == "1.13.x" ] ||
+        [ "$TRAVIS_GO_VERSION" == "1.12.x" ]; then
+
+      if [ "$TRAVIS_OS_NAME" = "windows" ]; then
+        make unit-no-verify;
       else
-          make get-deps-tests;
-          make unit-old-go-race-cover;
+        make get-deps-verify;
+        make ci-test;
       fi
+    else
+      make unit-old-go-race-cover;
     fi
 
 branches:

CHANGELOG_PENDING.md

@@ -1,4 +1,9 @@
 ### SDK Features
+* Remove SDK's `vendor` directory of vendored dependencies
+  * Updates the SDK's Go module definition to enumerate all dependencies of the SDK and its components. 
+  * SDK's repository root package has been updated to refer to runtime dependencies like `go-jmespath` for `go get` the SDK with Go without modules.
+* Deletes the deprecated `awsmigrate` utility from the SDK's repository.
+  * This utility is no longer relevant. The utility allowed users the beta pre-release v0 SDK to update to the v1.0 released version of the SDK.
 
 ### SDK Enhancements
 

Makefile

@@ -116,13 +116,6 @@ sandbox-go1.5: sandbox-build-go1.5
 sandbox-test-go1.5: sandbox-build-go1.5
 	docker run -t aws-sdk-go-1.5
 
-sandbox-build-go1.5-novendorexp:
-	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.5-novendorexp -t "aws-sdk-go-1.5-novendorexp" .
-sandbox-go1.5-novendorexp: sandbox-build-go1.5-novendorexp
-	docker run -i -t aws-sdk-go-1.5-novendorexp bash
-sandbox-test-go1.5-novendorexp: sandbox-build-go1.5-novendorexp
-	docker run -t aws-sdk-go-1.5-novendorexp
-
 sandbox-build-go1.6:
 	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.6 -t "aws-sdk-go-1.6" .
 sandbox-go1.6: sandbox-build-go1.6
@@ -208,19 +201,14 @@ vet:
 ################
 # Dependencies #
 ################
-get-deps: get-deps-tests get-deps-x-tests get-deps-codegen get-deps-verify
-
-get-deps-tests:
-	@echo "go get SDK testing dependencies"
+get-deps: 
+	@echo "getting pre go module dependnecies"
+	go get github.com/jmespath/go-jmespath
 
 get-deps-x-tests:
 	@echo "go get SDK testing golang.org/x dependencies"
 	go get golang.org/x/net/http2
 
-get-deps-codegen: get-deps-x-tests
-	@echo "go get SDK codegen dependencies"
-	go get golang.org/x/net/html
-
 get-deps-verify:
 	@echo "go get SDK verification utilities"
 	go get golang.org/x/lint/golint