Remove spring-cql dependency from Reactive Cassandra starter

The spring-cql module has been merged into the spring-data-cassandra
module.

See gh-9291

spring-boot-starters/spring-boot-starter-data-cassandra-reactive/pom.xml

@@ -40,10 +40,6 @@
 				</exclusion>
 			</exclusions>
 		</dependency>
-		<dependency>
-			<groupId>org.springframework.data</groupId>
-			<artifactId>spring-cql</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>io.projectreactor</groupId>
 			<artifactId>reactor-core</artifactId>

spring-boot-starters/spring-boot-starter-data-cassandra-reactive/src/main/resources/META-INF/spring.provides

-provides: spring-data-cassandra, spring-cql
\ No newline at end of file
+provides: spring-data-cassandra
\ No newline at end of file