Remove support for encoded-call messaging from relay and runtime integration code (#1376)

* remove support for encoded-call messaging

* continue cleanup

* continue cleanup

* continue cleanup

* more cleanpup

* more cleanup

* fmt

* continue cleanup

* spellcheck

* rename

* fix benchmarks

* mention encoded-calls-messaging tag

* fixing deployments

* fix messages generation

* fmt

bridges/primitives/runtime/src/lib.rs

@@ -136,18 +136,18 @@ pub trait Size {
 	fn size_hint(&self) -> u32;
 }
 
-impl Size for &[u8] {
-	fn size_hint(&self) -> u32 {
-		self.len() as _
-	}
-}
-
 impl Size for () {
 	fn size_hint(&self) -> u32 {
 		0
 	}
 }
 
+impl Size for Vec<u8> {
+	fn size_hint(&self) -> u32 {
+		self.len() as _
+	}
+}
+
 /// Pre-computed size.
 pub struct PreComputedSize(pub usize);