Delete attributes that are the same as defaults

Author: lucic71

docs/book.toml

@@ -3,17 +3,13 @@ title = "Cpp2Rust"
 description = "Developer documentation for Cpp2Rust, an automatic C++ to safe Rust translator."
 authors = ["The Cpp2Rust Authors"]
 language = "en"
-src = "src"
 
 [build]
-build-dir = "book"
 create-missing = false
 
 [output.html]
-default-theme = "light"
 git-repository-url = "https://github.com/cpp2rust/cpp2rust"
 edit-url-template = "https://github.com/cpp2rust/cpp2rust/edit/master/docs/{path}"
-no-section-label = false
 
 [output.html.fold]
 enable = true