bump e-h version, drop patch

Author: ryankurte

Cargo.toml

@@ -16,7 +16,7 @@ gpio_cdev = ["gpio-cdev"]
 default = [ "gpio_cdev", "gpio_sysfs" ]
 
 [dependencies]
-embedded-hal = "=1.0.0-alpha.2"
+embedded-hal = "=1.0.0-alpha.3"
 gpio-cdev = { version = "0.3", optional = true }
 sysfs_gpio = { version = "0.5", optional = true }
 
@@ -34,6 +34,3 @@ openpty = "0.1.0"
 default-features = false
 version = "0.2.2"
 
-[patch.crates-io]
-embedded-hal = { git = "https://github.com/rust-embedded/embedded-hal" }
-