Back out changes to TWI/LCD example.

Author: Jonathan Pallant

examples/twi-ssd1306/Cargo.toml

@@ -4,7 +4,6 @@ version = "0.1.0"
 authors = [
    "James Waples <[email protected]>",
    "Ruben Paz <[email protected]>",
-   "Jonathan Pallant <[email protected]>"
 ]
 edition = "2018"
 
@@ -28,13 +27,7 @@ version = "0.8.0"
 path = "../../nrf52840-hal"
 optional = true
 
-[dependencies.nrf9160-hal]
-version = "0.1.0"
-path = "../../nrf9160-hal"
-optional = true
-
 [features]
 52832 = ["nrf52832-hal"]
 52840 = ["nrf52840-hal"]
-9160 = ["nrf9160-hal"]
 default = ["52832"]