Style: Remove inconsistently used @author docstrings

Each file in Godot has had multiple contributors who co-authored it over the
years, and the information of who was the original person to create that file
is not very relevant, especially when used so inconsistently.

`git blame` is a much better way to know who initially authored or later
modified a given chunk of code, and most IDEs now have good integration to
show this information.

modules/svg/image_loader_svg.h

@@ -34,10 +34,6 @@
 #include "core/io/image_loader.h"
 #include "core/string/ustring.h"
 
-/**
-	@author Daniel Ramirez <djrmuv@gmail.com>
-*/
-
 // Forward declare and include thirdparty headers in .cpp.
 struct NSVGrasterizer;
 struct NSVGimage;
@@ -70,4 +66,4 @@ public:
 	ImageLoaderSVG();
 };
 
-#endif
+#endif // IMAGE_LOADER_SVG_H