drop some unused dependencies

pom.xml

@@ -128,25 +128,12 @@ cobbzilla-utils is available under the Apache License, version 2: http://www.apa
             <version>${commons-beanutils.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-collections4</artifactId>
-            <version>${commons-collections.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
             <version>${commons-lang3.version}</version>
         </dependency>
 
-        <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-text -->
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-text</artifactId>
-            <version>1.7</version>
-        </dependency>
-
         <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
         <dependency>
             <groupId>org.apache.poi</groupId>
@@ -204,12 +191,6 @@ cobbzilla-utils is available under the Apache License, version 2: http://www.apa
             <version>${httpmime.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-            <version>${guava.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>joda-time</groupId>
             <artifactId>joda-time</artifactId>