Fix Lint/Void offenses

Setter methods return the assigned value. Given:

```rb
class MyClass
  def foo=(v)
    v = 10
    42
  end
end
```

`my_object.foo = 5` will always return `5`

This methods removes code that does not have effect

1 files changed, 0 insertions, 3 deletions

diff --git a/lib/axlsx/drawing/title.rb b/lib/axlsx/drawing/title.rb
index c3ca9632..2e4037fb 100644
--- a/lib/axlsx/drawing/title.rb
+++ b/lib/axlsx/drawing/title.rb
@@ -32,7 +32,6 @@ module Axlsx
       DataTypeValidator.validate 'Title.text', String, v
       @text = v
       @cell = nil
-      v
     end
 
     # @see text_size
@@ -40,7 +39,6 @@ module Axlsx
       DataTypeValidator.validate 'Title.text_size', String, v
       @text_size = v
       @cell = nil
-      v
     end
 
     # @see cell
@@ -48,7 +46,6 @@ module Axlsx
       DataTypeValidator.validate 'Title.text', Cell, v
       @cell = v
       @text = v.value.to_s
-      v
     end
 
     # Check if the title is empty.