Remove deprecated deny.toml entries as per EmbarkStudios/cargo-deny#611

Author: alpeb

deny.toml

@@ -1,3 +1,4 @@
+[graph]
 targets = [
     { triple = "x86_64-unknown-linux-gnu" },
     { triple = "aarch64-unknown-linux-gnu" },
@@ -7,19 +8,12 @@ targets = [
 [advisories]
 db-path = "~/.cargo/advisory-db"
 db-urls = ["https://github.com/rustsec/advisory-db"]
-vulnerability = "deny"
-unmaintained = "warn"
 yanked = "deny"
-notice = "warn"
 ignore = []
 
 [licenses]
-unlicensed = "deny"
 allow = ["Apache-2.0", "MIT"]
 deny = []
-copyleft = "deny"
-allow-osi-fsf-free = "neither"
-default = "deny"
 confidence-threshold = 0.8
 exceptions = [
     # The Unicode-DFS--2016 license is necessary for unicode-ident because