Update proposals/README.md

Author: emkornfield

proposals/README.md

@@ -61,7 +61,6 @@ Once the implementation phase is finished, we can include the contribution in th
 | [Issue #531](https://github.com/apache/parquet-format/issues/531) | FSST support for Parquet format | Draft/PoC |
 | [Issue #533](https://github.com/apache/parquet-format/issues/533) | ALP support for Parquet format  | Draft/PoC |
 
-(Those are examples to be removed as we start using this) 
 
 ## Implemented
 | ID  | Description  | Status  | release it was added  |