Remove example table. (#7235)

Author: sarutak

datafusion-examples/Cargo.toml

@@ -29,11 +29,6 @@ license = { workspace = true }
 authors = { workspace = true }
 rust-version = { workspace = true }
 
-[[example]]
-name = "avro_sql"
-path = "examples/avro_sql.rs"
-required-features = ["datafusion/avro"]
-
 [dev-dependencies]
 arrow = { workspace = true }
 arrow-flight = { workspace = true }