chore: remove unused cortex-m dependency from embedded Cargo.toml files in bitcoin and hashes modules.

Author: lfgtwo

bitcoin/embedded/Cargo.toml

@@ -10,10 +10,8 @@ version = "0.1.0"
 members = ["."]
 
 [dependencies]
-cortex-m = "0.6.0"
 cortex-m-rt = "0.6.10"
 cortex-m-semihosting = "0.3.3"
-panic-halt = "0.2.0"
 alloc-cortex-m = "0.4.1"
 bitcoin = { path="../", default-features = false, features = ["secp-lowmemory"] }
 

hashes/embedded/Cargo.toml

@@ -14,7 +14,6 @@ alloc = ["alloc-cortex-m", "bitcoin_hashes/alloc"]
 hex = ["bitcoin_hashes/hex"]
 
 [dependencies]
-cortex-m = "0.6.0"
 cortex-m-rt = "0.6.10"
 cortex-m-semihosting = "0.3.3"
 panic-halt = "0.2.0"