chore(scheduler): Remove actuator

# Issue

Spring Actuator can, if not configured correctly, expose sensitive
information.

We have not configured Actuator to expose any data, so we can just
remove it.

# Fix

Remove Spring Actuator.

src/scheduler/pom.xml

@@ -47,10 +47,6 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-actuator</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-validation</artifactId>

src/scheduler/src/main/java/org/cloudfoundry/autoscaler/scheduler/SchedulerApplication.java

@@ -4,8 +4,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.boot.SpringApplication;
-import org.springframework.boot.actuate.autoconfigure.audit.AuditAutoConfiguration;
-import org.springframework.boot.actuate.autoconfigure.info.InfoContributorAutoConfiguration;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.aop.AopAutoConfiguration;
 import org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration;
@@ -28,9 +26,7 @@
 @SpringBootApplication(
     exclude = {
       AopAutoConfiguration.class,
-      AuditAutoConfiguration.class,
       DataSourceAutoConfiguration.class,
-      InfoContributorAutoConfiguration.class,
       WebClientAutoConfiguration.class,
       ProjectInfoAutoConfiguration.class,
       ConfigurationPropertiesAutoConfiguration.class,