Remove stale comment

Author: alamb

datafusion-examples/Cargo.toml

@@ -74,7 +74,6 @@ serde = { version = "1.0.136", features = ["derive"] }
 serde_json = { workspace = true }
 tempfile = { workspace = true }
 tokio = { workspace = true, features = ["rt-multi-thread", "parking_lot"] }
-# 0.10 and 0.11 are incompatible. Need to upgrade tonic to 0.11 when upgrading to arrow 51
 tonic = "0.11"
 url = { workspace = true }
 uuid = "1.2"