Remove reference to log4j.jar since we no longer need/use it.

Author: kwwall

src/examples/java/DisplayEncryptedProperties.java

@@ -8,7 +8,7 @@
 //          that were encrypted using ESAPI's EncryptedProperties class.
 //
 // Usage: java -classpath <cp> DisplayEncryptedProperties encryptedPropFileName
-//        where <cp> is proper classpath, which minimally include esapi.jar & log4j.jar
+//        where <cp> is proper classpath, which minimally includes the esapi.jar.
 public class DisplayEncryptedProperties {
 
     public DisplayEncryptedProperties() {

src/examples/java/ESAPILogging.java

@@ -4,7 +4,7 @@
 // Purpose: Short code snippet to show how ESAPI logging works.
 //
 // Usage: java -classpath <cp> ESAPILogging
-//        where <cp> is proper classpath, which minimally include esapi.jar & log4j.jar
+//        where <cp> is proper classpath, which minimally includes the esapi.jar.
 public class ESAPILogging {
 
     public static void main(String[] args) {