core, graph: Remove unnecessary code

Author: Jannis

core/src/subgraph/registrar.rs

@@ -531,7 +531,7 @@ fn resolve_subgraph_chain_blocks(
             min_start_block => Box::new(
                 ethereum_adapter
                     .block_pointer_from_number(logger, min_start_block - 1)
-                    .map(move |block_ptr| Some(block_ptr))
+                    .map(Some)
                     .map_err(move |_| {
                         SubgraphRegistrarError::ManifestValidationError(vec![
                             SubgraphManifestValidationError::BlockNotFound(

graph/src/data/store/mod.rs

@@ -396,7 +396,7 @@ impl TryFrom<Value> for Option<H256> {
         match value {
             Value::Bytes(bytes) => {
                 let hex = format!("{}", bytes);
-                Ok(Some(H256::from_str(hex.as_str().trim_start_matches("0x"))?))
+                Ok(Some(H256::from_str(hex.trim_start_matches("0x"))?))
             }
             Value::String(s) => Ok(Some(H256::from_str(s.as_str())?)),
             Value::Null => Ok(None),