cleanup(rust): remove extra newlines (#2995)

Author: dbolduc

internal/sidekick/rust/templates/common/README.md.mustache

@@ -16,8 +16,8 @@ limitations under the License.
 # Google Cloud Client Libraries for Rust - {{{Title}}}
 
 <!-- Code generated by sidekick. DO NOT EDIT. -->
-
 {{^Codec.ReleaseLevelIsGA}}
+
 **FEEDBACK WANTED:** We believe the APIs in this crate are stable, and
 do not anticipate any breaking changes are needed. We are looking for
 feedback before labeling the APIs "1.0". Changes (even breaking changes)
@@ -69,7 +69,9 @@ The main types to work with this crate are the clients:
 ## More Information
 
 - Read the [crate's documentation](https://docs.rs/{{Codec.PackageName}}/{{Codec.PackageVersion}})
+{{#Codec.HasServices}}
 
+{{/Codec.HasServices}}
 {{#Codec.Services}}
 [{{Codec.Name}}]: https://docs.rs/{{Model.Codec.PackageName}}/{{Model.Codec.PackageVersion}}/{{Model.Codec.PackageNamespace}}/client/struct.{{Codec.Name}}.html
 {{/Codec.Services}}

internal/sidekick/rust/templates/crate/src/lib.rs.mustache

@@ -27,7 +27,7 @@ limitations under the License.
 //!
 //! This client library was generated from the "{{Revision}}" revision of the API.
 {{/Revision}}
-//! {{^Codec.ReleaseLevelIsGA}}
+{{^Codec.ReleaseLevelIsGA}}
 //!
 //! **FEEDBACK WANTED:** We believe the APIs in this crate are stable, and
 //! do not anticipate any breaking changes are needed. We are looking for
@@ -36,27 +36,27 @@ limitations under the License.
 //!
 //! We also believe the implementation is ready for production, bugs are
 //! still possible, but not expected.
-//! {{/Codec.ReleaseLevelIsGA}}
-//! {{#Codec.Incomplete}}
+{{/Codec.ReleaseLevelIsGA}}
+{{#Codec.Incomplete}}
 //!
 //! **WARNING:** some RPCs have no corresponding Rust function to call them.
 //! Typically these are streaming RPCs. We expect adding these RPCs in a
 //! way that does not break the existing APIs or changes their behavior in a
 //! significant way. We do anticipate a number of new crate dependencies
 //! will be required. If you need these RPCs please open an issue in our
 //! GitHub repository.
-//! {{/Codec.Incomplete}}
+{{/Codec.Incomplete}}
 //!
 //! This crate contains traits, types, and functions to interact with {{{Title}}}
 //! Most applications will use the structs defined in the [client] module.
-//! {{#Codec.ReleaseLevelIsGA}}
+{{#Codec.ReleaseLevelIsGA}}
 //!
 //! The client library types and functions are stable and not expected to change.
 //! Please note that Google Cloud services do change from time to time. The client
 //! libraries are designed to preserve backwards compatibility when the service
 //! changes in compatible ways. For example, adding RPCs, or fields to messages
 //! should not introduce breaking changes to the client libraries.
-//! {{/Codec.ReleaseLevelIsGA}}
+{{/Codec.ReleaseLevelIsGA}}
 //!
 //! # Available Clients
 //!