GH-3068: Remove parquet-scala (#3063)

Author: Fokko

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -39,7 +39,6 @@ body:
         - Avro
         - Pig
         - Protobuf
-        - Scala
         - Thrift
         - CLI
         - Benchmark

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -42,9 +42,8 @@ body:
         - Avro
         - Pig
         - Protobuf
-        - Scala
         - Thrift
         - CLI
         - Benchmark
     validations:
-      required: false
+      required: false

.github/ISSUE_TEMPLATE/usage_question.yaml

@@ -62,9 +62,8 @@ body:
         - Avro
         - Pig
         - Protobuf
-        - Scala
         - Thrift
         - CLI
         - Benchmark
     validations:
-      required: false
+      required: false

README.md

@@ -91,6 +91,7 @@ Parquet is a very active project, and new features are being added quickly. Here
 * Column stats
 * Delta encoding
 * Index pages
+* Scala DSL (deprecated)
 * Java Vector API support (experimental)
 
 ## Java Vector API support

parquet-scala/pom.xml

@@ -148,7 +148,6 @@
     <module>parquet-pig</module>
     <module>parquet-pig-bundle</module>
     <module>parquet-protobuf</module>
-    <module>parquet-scala</module>
     <module>parquet-thrift</module>
     <module>parquet-hadoop-bundle</module>
   </modules>