Revert "Changed load_class_from_file to use load to force reloadi…

…ng the file."

* This reverts commit bbeb41b.
* This change does not handle the edge-case where the class has already
  been loaded and it's id is still in the `.registry`.

lib/ronin/core/class_registry.rb

@@ -192,7 +192,7 @@ def load_class_from_file(file)
 
           previous_entries = registry.keys
 
-          load(file)
+          require(file)
 
           new_entries = registry.keys - previous_entries
 

spec/class_registry_spec.rb

@@ -105,12 +105,10 @@ class Foo
     let(:file)  { File.join(subject.class_dir,"#{id}.rb") }
     let(:klass) { ExampleClassRegistry::LoadedClass }
 
-    it "must load the file" do
-      expect(subject).to receive(:load).with(file) do
-        load(file)
-      end
-
+    it "must require the file" do
       subject.load_class_from_file(file)
+
+      expect($LOADED_FEATURES).to include(file)
     end
 
     it "must return the registered module" do
@@ -128,7 +126,7 @@ class Foo
       let(:absolute_path) { File.expand_path(relative_path) }
 
       it "must expand the path first" do
-        expect(subject).to receive(:load).with(absolute_path) do
+        expect(subject).to receive(:require).with(absolute_path) do
           load(absolute_path)
         end
 
@@ -160,6 +158,7 @@ class Foo
 
     after do
       subject.registry.clear
+      $LOADED_FEATURES.delete(file)
     end
   end