Remove dependency management for selenium-opera-driver

It's a new module in 3.0 and we're using 2.53.x in 1.5.x.

See gh-11528

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -2318,11 +2318,6 @@
 				<artifactId>selenium-java</artifactId>
 				<version>${selenium.version}</version>
 			</dependency>
-			<dependency>
-				<groupId>org.seleniumhq.selenium</groupId>
-				<artifactId>selenium-opera-driver</artifactId>
-				<version>${selenium.version}</version>
-			</dependency>
 			<dependency>
 				<groupId>org.seleniumhq.selenium</groupId>
 				<artifactId>selenium-remote-driver</artifactId>