removed appserver-specific files

src/main/webapp/META-INF/context.xml

-<!-- Tomcat context descriptor used for specifying a custom ClassLoader -->
-<!-- Useful for allowing web-app wide (as opposed to VM or container wide) class instrumentation -->
-<Context path="/petclinic" reloadable="false">
-	<!-- Tomcat 6.x or higher -->
-	<!--  
-	<Loader loaderClass="org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader"/>
-	-->
-	
-	<!-- Tomcat 5.5.x (higher then 5.5.20) -->
-	<!--
-	<Loader loaderClass="org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader" useSystemClassLoaderAsParent="false"/>
-	-->
-	
-</Context>

src/main/webapp/WEB-INF/geronimo-web.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.0"
-		 configId="org/springframework/samples/petclinic">
-	<context-root>/petclinic</context-root>
-	<context-priority-classloader>true</context-priority-classloader>
-</web-app>
\ No newline at end of file