Removes the section with the specified name and returns it, or {@code null} if the section did not exist.
@param sectionName the name of the section to remove. @return the section with the specified name or {@code null} if the section did not exist.
See Implementation
Removes the section with the specified name and returns it, or {@code null} if the section did not exist.
@param sectionName the name of the section to remove. @return the section with the specified name or {@code null} if the section did not exist.