SDK cleanup to reduce featurization (#5856)

sdk/Cargo.toml

@@ -11,17 +11,12 @@ edition = "2018"
 [features]
 # On-chain program specific dependencies
 program = []
-# Kitchen sink specific dependencies
-kitchen_sink = [
+# Dependencies that are not compatible or needed for on-chain programs
+default = [
     "assert_matches",
     "byteorder",
     "chrono",
-    "generic-array",
-    "itertools",
-    "log",
     "memmap",
-    "num-derive",
-    "num-traits",
     "rand",
     "rayon",
     "serde_json",
@@ -29,7 +24,6 @@ kitchen_sink = [
     "solana-logger",
     "untrusted",
 ]
-default = ["kitchen_sink"]
 
 [dependencies]
 assert_matches = { version = "1.3.0", optional = true }
@@ -37,13 +31,13 @@ bincode = "1.1.4"
 bs58 = "0.2.5"
 byteorder = { version = "1.3.2", optional = true }
 chrono = { version = "0.4.9", features = ["serde"], optional = true }
-generic-array = { version = "0.13.2", default-features = false, features = ["serde", "more_lengths"], optional = true }
+generic-array = { version = "0.13.2", default-features = false, features = ["serde", "more_lengths"] }
 hex = "0.3.2"
-itertools = { version = "0.8.0", optional = true }
-log = { version = "0.4.8", optional = true }
+itertools = { version = "0.8.0" }
+log = { version = "0.4.8" }
 memmap = { version = "0.6.2", optional = true }
-num-derive = { version = "0.2", optional = true }
-num-traits = { version = "0.2", optional = true }
+num-derive = { version = "0.2" }
+num-traits = { version = "0.2" }
 rand = { version = "0.6.5", optional = true }
 rayon = { version = "1.2.0", optional = true }
 serde = "1.0.99"