NIHVIVO-2774 Remove JARs that we don't seem to be using.

webapp/lib/README.txt

@@ -1,15 +0,0 @@
-notes about jar files in lib dir:
-
-commons-pool-1.2.jar - for connection pools and dbcp
-commons-collections-3.1.jar - for commons-pool-1.2.jar
-These previous two jars were not in the lib directory because
-we had been putting them in tomcat/common/lib for the
-server.xml database connection.
-
-cos.jar 
-com.oreilly.servlet.* classes. Many different utilities for
-servlets from http://servlets.com/cos/
-There is a set of file upload tools, an email utility, a cache,
-a base64 encode/decode, a parameter parser.
-
-updated by bdc who need ServletUtils.