[go/sdk] Remove deprecated providers/Provider resource (#1817)

A previous codegen bug created a duplicate type for the Provider
resource in the Go SDK. The duplicate type was deprecated about
three months ago, and is now being removed.

Use the Provider resource at
`github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes` instead.

* Remove generated Go SDK before rebuild

CHANGELOG.md

@@ -1,6 +1,13 @@
 ## HEAD (Unreleased)
 
+Breaking change note:
+
+[#1817](https://github.com/pulumi/pulumi-kubernetes/pull/1817) removed the deprecated providers/Provider
+resource definition from the Go SDK. Following this change, use the Provider resource at
+`github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes` instead.
+
 - Helm Release: Make RepositoryOpts optional  (https://github.com/pulumi/pulumi-kubernetes/pull/1806)
+- [go/sdk] Remove deprecated providers/Provider resource (https://github.com/pulumi/pulumi-kubernetes/pull/1817)
 
 ## 3.10.1 (November 19, 2021)
 

Makefile

@@ -59,6 +59,8 @@ dotnet_sdk::
 		dotnet build /p:Version=${DOTNET_VERSION}
 
 go_sdk::
+	# Delete generated SDK before regenerating.
+	rm -rf sdk/go/kubernetes
 	$(WORKING_DIR)/bin/$(CODEGEN) -version=${VERSION} go $(SCHEMA_FILE) $(CURDIR)
 
 nodejs_sdk:: VERSION := $(shell pulumictl get version --language javascript)

provider/cmd/pulumi-gen-kubernetes/main.go

@@ -372,19 +372,6 @@ func writeGoClient(pkg *schema.Package, outdir string, templateDir string) {
 		return templateResources.Resources[i].Token < templateResources.Resources[j].Token
 	})
 
-	// We mistakenly included an older version of the Go Provider at
-	// `github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes/providers` that was later removed in v3.6.0.
-	// Re-add this file with deprecation notices in preparation for future removal.
-	deprecatedComment := "// Deprecated: Use `github.com/pulumi/pulumi-kubernetes/sdk/v3/go/kubernetes` instead"
-	deprecatedProviderFile := string(files["kubernetes/provider.go"])
-	deprecatedProviderFile = strings.ReplaceAll(deprecatedProviderFile, "\nfunc", fmt.Sprintf("\n%s\nfunc", deprecatedComment))
-	deprecatedProviderFile = strings.ReplaceAll(deprecatedProviderFile, "\ntype", fmt.Sprintf("\n%s\ntype", deprecatedComment))
-	files["kubernetes/providers/provider.go"] = []byte(deprecatedProviderFile)
-	deprecatedTypesFile := string(files["kubernetes/pulumiTypes.go"])
-	deprecatedTypesFile = strings.ReplaceAll(deprecatedTypesFile, "\nfunc", fmt.Sprintf("\n%s\nfunc", deprecatedComment))
-	deprecatedTypesFile = strings.ReplaceAll(deprecatedTypesFile, "\ntype", fmt.Sprintf("\n%s\ntype", deprecatedComment))
-	files["kubernetes/providers/pulumiTypes.go"] = []byte(deprecatedTypesFile)
-
 	files["kubernetes/customPulumiTypes.go"] = mustLoadGoFile(filepath.Join(templateDir, "customPulumiTypes.go"))
 	files["kubernetes/apiextensions/customResource.go"] = mustLoadGoFile(filepath.Join(templateDir, "apiextensions", "customResource.go"))
 	files["kubernetes/helm/v2/chart.go"] = mustLoadGoFile(filepath.Join(templateDir, "helm", "v2", "chart.go"))