Remove .cargo folder

idk why I left it in

.cargo/.gitignore

@@ -1 +0,0 @@
-config.toml

.gitignore

@@ -2,3 +2,5 @@
 .scratch
 .flatpak-builder
 .cache
+
+.cargo/

README.md

@@ -36,7 +36,7 @@ These features aren't planned at the moment (but maybe in the future):
 
 Using the [mold](https://github.com/rui314/mold/) linker is recommended, as it
 can significantly speed up compile times. To use it, create a file at
-`.cargo/config.toml` with the following contents:
+`.cargo/config.toml` in the root of this repository with the following contents:
 
 ```toml
 [target.x86_64-unknown-linux-gnu]