Remove lombok dependency

trampoline/src/main/java/com/iluwatar/trampoline/TrampolineApp.java

@@ -23,7 +23,8 @@
 
 package com.iluwatar.trampoline;
 
-import lombok.extern.slf4j.Slf4j;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Trampoline pattern allows to define recursive algorithms by iterative loop.
@@ -32,9 +33,10 @@ import lombok.extern.slf4j.Slf4j;
  * and to interleave the execution of functions without hard coding them together or even using
  * threads.
  */
-@Slf4j
 public class TrampolineApp {
 
+  private static final Logger log = LoggerFactory.getLogger(TrampolineApp.class);
+
   /**
    * Main program for showing pattern. It does loop with factorial function.
    */