Removed keyword to get to a count of 5

Author: Hirevo

google-cloud/Cargo.toml

@@ -5,7 +5,7 @@ version = "0.1.0"
 authors = ["Nicolas Polomack <nicolas@polomack.eu>"]
 edition = "2018"
 categories = ["web-programming", "network-programming", "asynchronous"]
-keywords = ["grpc", "futures", "async", "protobuf", "google", "cloud"]
+keywords = ["grpc", "futures", "async", "google", "cloud"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/google-apis-rs/google-cloud-rs"
 documentation = "https://docs.rs/google-cloud"