Fix duplicate dalek dep

Author: pinkforest

dtls/Cargo.toml

@@ -17,11 +17,8 @@ util = { version = "0.7.0", path = "../util", package = "webrtc-util", default-f
 
 byteorder = "1"
 rand_core = "0.6.3"
-elliptic-curve = { version = "0.12.1", features = ["default", "ecdh"] }
-# required because elliptic-curve requires "0.12", but "0.12.0" does not compile.
+elliptic-curve = { version = "0.13.5", features = ["default", "ecdh"] }
 hkdf = "~0.12.1"
-# required because elliptic-curve requires "3", but "3.0.0" does not compile.
-curve25519-dalek = "3.2"
 p256 = { version = "0.11.1", features = ["default", "ecdh", "ecdsa"] }
 p384 = "0.11.2"
 rand = "0.8.5"