modify sentinel dependency

spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/pom.xml

@@ -31,11 +31,6 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>com.alibaba.csp</groupId>
-            <artifactId>sentinel-web-servlet</artifactId>
-        </dependency>
-
         <!--<dependency>-->
         <!--<groupId>com.alibaba.csp</groupId>-->
         <!--<artifactId>sentinel-datasource-nacos</artifactId>-->

spring-cloud-alibaba-examples/sentinel-example/sentinel-webflux-example/pom.xml

@@ -33,11 +33,6 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>com.alibaba.csp</groupId>
-            <artifactId>sentinel-spring-webflux-adapter</artifactId>
-        </dependency>
-
         <!--<dependency>-->
         <!--<groupId>com.alibaba.csp</groupId>-->
         <!--<artifactId>sentinel-datasource-nacos</artifactId>-->

spring-cloud-alibaba-sentinel/pom.xml

@@ -40,7 +40,6 @@
         <dependency>
             <groupId>com.alibaba.csp</groupId>
             <artifactId>sentinel-web-servlet</artifactId>
-            <optional>true</optional>
         </dependency>
 
         <dependency>
@@ -52,7 +51,6 @@
         <dependency>
             <groupId>com.alibaba.csp</groupId>
             <artifactId>sentinel-spring-webflux-adapter</artifactId>
-            <optional>true</optional>
         </dependency>
 
         <dependency>