Remove unnecessary dependency on dagger

Author: jianglai

metrics/pom.xml

@@ -32,12 +32,6 @@
       <version>1.5.3</version>
       <scope>provided</scope>
     </dependency>
-    <!-- https://mvnrepository.com/artifact/com.google.dagger/dagger -->
-    <dependency>
-      <groupId>com.google.dagger</groupId>
-      <artifactId>dagger</artifactId>
-      <version>2.14.1</version>
-    </dependency>
     <!-- https://mvnrepository.com/artifact/com.google.errorprone/error_prone_annotations -->
     <dependency>
       <groupId>com.google.errorprone</groupId>