[SPARK-20400][DOCS] Remove References to 3rd Party Vendor Tools
[SPARK-20400][DOCS] Remove References to 3rd Party Vendor Tools

## What changes were proposed in this pull request?

Simple documentation change to remove explicit vendor references.

## How was this patch tested?

NA

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: anabranch <bill@databricks.com>

Closes #17695 from anabranch/remove-vendor.

(cherry picked from commit 7a365257e934e838bd90f6a0c50362bf47202b0e)
Signed-off-by: Sean Owen <291c18f3fb7528c712d9098b0e50a515ea0b91d5@cloudera.com>

publicRoman/spark,apache-spark-on-k8s/spark,jlopezmalla/spark,apache-spark-on-k8s/spark,publicRoman/spark,publicRoman/spark,jlopezmalla/spark,publicRoman/spark,jlopezmalla/spark,jlopezmalla/spark,apache-spark-on-k8s/spark,apache-spark-on-k8s/spark,apache-spark-on-k8s/spark,publicRoman/spark,apache-spark-on-k8s/spark,apache-spark-on-k8s/spark,jlopezmalla/spark,publicRoman/spark,jlopezmalla/spark,jlopezmalla/spark,publicRoman/spark