Reduce unnecessary use of aspectj as a build dependency

samples/contacts/contacts.gradle

@@ -14,8 +14,7 @@ dependencies {
             "org.springframework:spring-jdbc:$springVersion",
             "org.springframework:spring-tx:$springVersion",
             "org.springframework:spring-web:$springVersion",
-            "org.springframework:spring-webmvc:$springVersion",
-            "org.aspectj:aspectjrt:$aspectjVersion"
+            "org.springframework:spring-webmvc:$springVersion"
 
     runtime project(':spring-security-web'),
             project(':spring-security-config'),

samples/tutorial/src/main/java/bigbank/BankServiceImpl.java

@@ -1,15 +1,10 @@
 package bigbank;
 
-import org.aspectj.lang.annotation.Pointcut;
 import org.springframework.util.Assert;
 
 public class BankServiceImpl implements BankService {
     private final BankDao bankDao;
 
-    // Not used unless you declare a <protect-pointcut>
-    @Pointcut("execution(* bigbank.BankServiceImpl.*(..))")
-    public void myPointcut() {}
-
     public BankServiceImpl(BankDao bankDao) {
         Assert.notNull(bankDao);
         this.bankDao = bankDao;

samples/tutorial/tutorial.gradle

@@ -10,7 +10,6 @@ dependencies {
             "org.springframework:spring-beans:$springVersion",
             "org.springframework:spring-web:$springVersion",
             "org.springframework:spring-webmvc:$springVersion",
-            "org.aspectj:aspectjrt:$aspectjVersion",
             "org.slf4j:slf4j-api:$slf4jVersion"
 
     runtime project(':spring-security-web'),

web/web.gradle

@@ -3,7 +3,6 @@
 dependencies {
     compile project(':spring-security-core'),
             'aopalliance:aopalliance:1.0',
-            "org.aspectj:aspectjweaver:$aspectjVersion",
             "org.springframework:spring-aop:$springVersion",
             "org.springframework:spring-beans:$springVersion",
             "org.springframework:spring-context:$springVersion",