build: remove logic to normalize the repo-metadata values

Author: sofisl

sdk-platform-java/hermetic_build/library_generation/owlbot/templates/java_library/README.md

@@ -157,9 +157,9 @@ To get help, follow the instructions in the [shared Troubleshooting document][tr
 
 {% if metadata['repo']['transport'] == 'grpc' -%}
 {{metadata['repo']['name_pretty']}} uses gRPC for the transport layer.
-{% elif metadata['repo']['transport'] == 'http' -%}
+{% elif metadata['repo']['transport'] == 'http' or metadata['repo']['transport'] == 'rest' -%}
 {{metadata['repo']['name_pretty']}} uses HTTP/JSON for the transport layer.
-{% elif metadata['repo']['transport'] == 'both' -%}
+{% elif metadata['repo']['transport'] == 'both' or metadata['repo']['transport'] == 'grpc+rest' -%}
 {{metadata['repo']['name_pretty']}} uses both gRPC and HTTP/JSON for the transport layer.
 {% endif %}
 {% endif -%}

sdk-platform-java/hermetic_build/library_generation/tests/resources/goldens/.repo-metadata-custom-transport-golden.json

@@ -5,7 +5,7 @@
   "api_description": "allows you to encrypt, store, manage, and audit infrastructure and application-level secrets.",
   "client_documentation": "https://cloud.google.com/java/docs/reference/google-cloud-secretmanager/latest/overview",
   "release_level": "preview",
-  "transport": "http",
+  "transport": "rest",
   "language": "java",
   "repo": "googleapis/google-cloud-java",
   "repo_short": "java-secretmanager",

sdk-platform-java/hermetic_build/library_generation/utils/utilities.py

@@ -232,23 +232,14 @@ def generate_postprocessing_prerequisite_files(
         else f"https://cloud.google.com/{language}/docs/reference/{artifact_id}/latest/overview"
     )
 
-    # The mapping is needed because transport in .repo-metadata.json
-    # is one of grpc, http and both,
-    if transport == "grpc":
-        converted_transport = "grpc"
-    elif transport == "rest":
-        converted_transport = "http"
-    else:
-        converted_transport = "both"
-
     repo_metadata = {
         "api_shortname": library.api_shortname,
         "name_pretty": library.name_pretty,
         "product_documentation": library.product_documentation,
         "api_description": library.api_description,
         "client_documentation": client_documentation,
         "release_level": library.release_level,
-        "transport": converted_transport,
+        "transport": transport,
         "language": language,
         "repo": repo,
         "repo_short": f"{language}-{library_name}",