Remove erroneous reference to roughenough-embedded which was bad part of cherry pick

Author: int08h

Cargo.toml

@@ -57,7 +57,6 @@ resolver = "3"
 members = [
     "crates/roughenough-client",
     "crates/roughenough-common",
-    "crates/roughenough-embedded",
     "crates/roughenough-integration",
     "crates/roughenough-merkle",
     "crates/roughenough-protocol",
@@ -67,7 +66,6 @@ members = [
 default-members = [
     "crates/roughenough-client",
     "crates/roughenough-common",
-    "crates/roughenough-embedded",
     "crates/roughenough-integration",
     "crates/roughenough-merkle",
     "crates/roughenough-protocol",