remove spark install from developer-readme and fix winutil instructions

website/docs/reference/developer-readme.md

@@ -10,32 +10,6 @@ description: SynapseML Development Setup
 1. [Install JDK 11](https://www.oracle.com/java/technologies/javase/jdk11-archive-downloads.html)
     - You may need an Oracle login to download.
 1. [Install SBT](https://www.scala-sbt.org/1.x/docs/Setup.html)
-1. Install Apache Spark
-   - [Download and install Apache Spark](https://spark.apache.org/downloads.html) with version >= 3.2.0. (SynapseML v0.11.1 only supports spark version >= 3.2.0)
-   - Extract downloaded zipped files (with 7-Zip app on Windows or `tar` on linux) and remember the location of
-extracted files, we take `C:\bin\spark-3.2.0-bin-hadoop3.2` or `~/bin/spark-3.2.0-bin-hadoop3.2/` as an example here.
-
-   - On Windows, run the following commands to set the environment variables used to locate Apache Spark. Make sure to run the command prompt in administrator mode.
-    <Tabs groupId="operating-systems">
-        <TabItem value="win" label="Windows" default>
-
-            setx /M HADOOP_HOME C:\bin\spark-3.2.0-bin-hadoop3.2\
-            setx /M SPARK_HOME C:\bin\spark-3.2.0-bin-hadoop3.2\
-            setx /M PATH "%PATH%;%HADOOP_HOME%;%SPARK_HOME%bin" # Warning: Don't run this if your path is already long as it will truncate your path to 1024 characters and potentially remove entries!
-
-        </TabItem>
-    </Tabs>
-
-    - On Linux, add the following to your .bashrc:
-    <Tabs groupId="operating-systems">
-        <TabItem value="linux" label="Mac/Linux">
-
-            export SPARK_HOME=~/bin/spark-3.2.0-bin-hadoop3.2/
-            export PATH="$SPARK_HOME/bin:$PATH"
-
-        </TabItem>
-    </Tabs>
-
 1. Fork the repository on GitHub
     - See how to here: [Fork a repo - GitHub Docs](https://docs.github.com/en/get-started/quickstart/fork-a-repo)
 1. Clone your fork
@@ -62,7 +36,10 @@ extracted files, we take `C:\bin\spark-3.2.0-bin-hadoop3.2` or `~/bin/spark-3.2.
     supports Linux or macOS. Horovod is used only for namespace `synapse.ml.dl`.
     :::
 1. On Windows, install WinUtils
-    - Download [WinUtils.exe](https://github.com/steveloughran/winutils/blob/master/hadoop-3.0.0/bin/winutils.exe) and copy it into the `bin` directory of your Spark installation, e.g. C:\Users\user\AppData\Local\Spark\spark-3.3.2-bin-hadoop3\bin
+    - Download [WinUtils.exe](https://github.com/steveloughran/winutils/blob/master/hadoop-3.0.0/bin/winutils.exe)
+    - Place it in C:\Program Files\Hadoop\bin
+    - Add an environment variable HADOOP_HOME with value C:\Program Files\Hadoop
+    - Append C:\Program Files\Hadoop\bin to PATH environment variable
 1. Install pre-commit
     - This repository uses the [pre-commit](https://pre-commit.com/index.html) tool to manage git hooks and enforce linting/coding styles.
     - The hooks are configured in [.pre-commit-config.yaml](https://github.com/microsoft/SynapseML/blob/master/environment.yml).