Remove optional features so their dependencies are not needed.
diff --git a/Cargo.toml b/Cargo.toml
index f109bf3..7f73bc3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,10 +33,6 @@ version = "1.2"
 [dependencies.cfg-if]
 version = "1.0"
 
-[dependencies.dirs]
-version = "3.0"
-optional = true
-
 [dependencies.fs2]
 version = "0.4"
 
@@ -54,25 +50,12 @@ version = "1.0"
 
 [dependencies.unicode-width]
 version = "0.1"
-[features]
-default = ["with-dirs"]
-with-dirs = ["dirs"]
-with-fuzzy = ["skim"]
 [target."cfg(unix)".dependencies.nix]
 version = "0.19"
 
-[target."cfg(unix)".dependencies.skim]
-version = "0.7"
-optional = true
-
 [target."cfg(unix)".dependencies.utf8parse]
 version = "0.2"
-[target."cfg(windows)".dependencies.scopeguard]
-version = "1.1"
 
-[target."cfg(windows)".dependencies.winapi]
-version = "0.3"
-features = ["consoleapi", "handleapi", "minwindef", "processenv", "winbase", "wincon", "winuser"]
 [badges.github-actions]
 repository = "kkawakam/rustyline"
 workflow = "Rust"