Update ink_core deps (#237)

* [core] remove unused/removed lints

* [core] update smallvec dependency to 1.0

core/Cargo.toml

@@ -25,7 +25,7 @@ ink_utils = { path = "../utils/", default-features = false }
 scale = { package = "parity-scale-codec", version = "1.0", default-features = false, features = ["derive", "full"] }
 type-metadata = { git = "https://github.com/type-metadata/type-metadata.git", default-features = false, features = ["derive"], optional = true }
 derive_more = { version = "0.99.1", default-features = false, features = ["from"] }
-smallvec = { version = "0.6.10", default-features = false, features = ["union"] }
+smallvec = { version = "1.0", default-features = false, features = ["union"] }
 cfg-if = "0.1"
 
 [features]
@@ -39,7 +39,6 @@ std = [
     "ink_utils/std",
     "scale/std",
     "type-metadata/std",
-    "smallvec/std",
 ]
 ink-generate-abi = [
     "ink_abi",

core/src/lib.rs

@@ -27,7 +27,6 @@
     bad_style,
     const_err,
     improper_ctypes,
-    legacy_directory_ownership,
     non_shorthand_field_patterns,
     no_mangle_generic_items,
     overflowing_literals,
@@ -35,7 +34,6 @@
     patterns_in_fns_without_body,
     plugin_as_library,
     private_in_public,
-    safe_extern_statics,
     unconditional_recursion,
     unused_allocation,
     unused_comparisons,