Remove references to bluetooth hardware

Author: jamesmunns

books/embedded-rust-book/src/intro/install.md

@@ -21,8 +21,7 @@ different than your laptop's and we'll have to run and debug programs on a "remo
 
 ## Documentation
 
-Tooling is not everything though. Without documentation is pretty much impossible to work with
-microcontrollers.
+Tooling is not everything though. Without documentation is pretty much impossible to work with microcontrollers.
 
 We'll be referring to all these documents throughout this book:
 
@@ -60,17 +59,6 @@ We'll use all the tools listed below. Where a minimum version is not specified,
 
 [`itmdump`]: https://crates.io/crates/itm
 
-If your laptop has Bluetooth functionality and you have the Bluetooth module, you can additionally
-install these tools to play with the Bluetooth module. All these are optional:
-
-- Linux, only if you don't have a Bluetooth manager application like Blueman.
-  - `bluez`
-  - `hcitool`
-  - `rfcomm`
-  - `rfkill`
-
-macOS / OSX / Windows users only need the default bluetooth manager that ships with their OS.
-
 Next, follow OS-agnostic installation instructions for a few of the tools:
 
 ### `rustc` & Cargo

books/embedded-rust-book/src/intro/install/linux.md

@@ -48,33 +48,6 @@ $ sudo pacman -S \
 $ yaourt -S openocd
 ```
 
-## Optional packages
-
-- Ubuntu / Debian
-
-``` console
-$ sudo apt-get install \
-  bluez \
-  rfkill
-```
-
-- Fedora
-
-``` console
-$ sudo dnf install \
-  bluez \
-  rfkill
-```
-
-- Arch Linux
-
-``` console
-$ sudo pacman -S \
-  bluez \
-  bluez-utils \
-  rfkill
-```
-
 ## udev rules
 
 These rules let you use USB devices like the F3 and the Serial module without root privilege, i.e.