Delombok 10/10 - Removed lombok dependency, cleaned up

CONTRIBUTING.md

@@ -5,20 +5,17 @@
 - The pull request must not have any checkstyle issues.
 - Every method and field must have a javadoc attached.
 
-2. Use lombok wherever possible.
-- @Getter, @Setter, @UtilityClass only.
-
-3. Use JetBrains annotations
+2. Use JetBrains annotations
 - Every parameter should be annotated with @NotNull or @Nullable
 - Use @NotNull over lombok @NonNull
 
-4. Imports
+3. Imports
 - No group (*) imports.
 - No static imports.
 
 ## Dependency Injection
 - eco uses Dependency Injection
-- Any calls to AbstractEcoPlugin#getInstance are code smells and should never be used unless **absolutely necessary**.
+- Any calls to Eco#getHandler#getEcoPlugin are code smells and should never be used unless **absolutely necessary**.
 - NamespacedKeys, FixedMetadataValues, Runnables, and Schedules should be managed using AbstractEcoPlugin through DI.
 - Any DI class should extend PluginDependent where possible. If the class extends another, then you **must** store the plugin instance in a private final variable called **plugin** with a private or protected getter.