[FLINK-22622][parquet] Drop BatchTableSource ParquetTableSource and related classes

This removes the ParquetTableSource and related classes including various ParquetInputFormats.
Use the filesystem connector with a Parquet format as a replacement. It is possible to
read via Table & SQL API and convert the Table to DataStream API if necessary.
DataSet API is not supported anymore.

This closes #15895.

Author: twalthr

flink-formats/flink-parquet/pom.xml

@@ -35,39 +35,17 @@ under the License.
 	<packaging>jar</packaging>
 
 	<dependencies>
-		<!-- Flink dependencies -->
 
-		<dependency>
-			<groupId>org.apache.flink</groupId>
-			<artifactId>flink-core</artifactId>
-			<version>${project.version}</version>
-			<scope>provided</scope>
-		</dependency>
+		<!-- Core -->
 
 		<dependency>
 			<groupId>org.apache.flink</groupId>
-			<artifactId>flink-table-common</artifactId>
+			<artifactId>flink-core</artifactId>
 			<version>${project.version}</version>
 			<scope>provided</scope>
 		</dependency>
 
 		<!-- Table ecosystem -->
-		<!-- Projects depending on this project won't depend on flink-table-*. -->
-		<dependency>
-			<groupId>org.apache.flink</groupId>
-			<artifactId>flink-table-api-java-bridge_${scala.binary.version}</artifactId>
-			<version>${project.version}</version>
-			<scope>provided</scope>
-			<optional>true</optional>
-		</dependency>
-		<!-- A planner dependency won't be necessary once FLIP-32 has been completed. -->
-		<dependency>
-			<groupId>org.apache.flink</groupId>
-			<artifactId>flink-table-planner_${scala.binary.version}</artifactId>
-			<version>${project.version}</version>
-			<scope>provided</scope>
-			<optional>true</optional>
-		</dependency>
 
 		<dependency>
 			<groupId>org.apache.flink</groupId>
@@ -77,7 +55,7 @@ under the License.
 			<optional>true</optional>
 		</dependency>
 
-		<!-- Parquet Dependencies -->
+		<!-- Parquet -->
 
 		<dependency>
 			<groupId>org.apache.parquet</groupId>
@@ -156,7 +134,7 @@ under the License.
 			</exclusions>
 		</dependency>
 
-		<!-- test dependencies -->
+		<!-- Tests -->
 
 		<dependency>
 			<groupId>org.apache.flink</groupId>