Google Cloud dependencies in the core part.

Need to remove GCP cloud libs from notification core:

<dependency>
            <groupId>com.google.http-client</groupId>
            <artifactId>google-http-client</artifactId>
            <version>1.30.1</version>
        </dependency>

        <dependency>
            <groupId>com.google.oauth-client</groupId>
            <artifactId>google-oauth-client</artifactId>
            <version>1.30.1</version>
        </dependency>

        <dependency>
            <groupId>com.google.api-client</groupId>
            <artifactId>google-api-client</artifactId>
            <version>1.30.2</version>
        </dependency>

<dependency>
            <groupId>com.google.apis</groupId>
            <artifactId>google-api-services-iam</artifactId>
            <version>v1-rev289-1.25.0</version>
        </dependency>

<dependency>
            <groupId>com.google.oauth-client</groupId>
            <artifactId>google-oauth-client</artifactId>
            <version>1.31.5</version>
        </dependency>

Core Part does not have cloud-specific libs.