Update HydraLabVpnLoggerTemp.kt and disable the network scanner funct…

…ion to resolve CodeQL issue (#670)

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its purpose, new behaviors after the change. And let us know here if you
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## Description

Update HydraLabVpnLoggerTemp.kt and disable the network scanner function
to resolve CodeQL issue: Uncontrolled data used in path expression

### Linked GitHub issue ID: #  

## Pull Request Checklist
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we are going to look for before merging your code. -->

- [ ] Tests for the changes have been added (for bug fixes / features)
- [ ] Code compiles correctly with all tests are passed.
- [ ] I've read the [contributing
guide](https://github.com/microsoft/HydraLab/blob/main/CONTRIBUTING.md#making-changes-to-the-code)
and followed the recommended practices.
- [ ] [Wikis](https://github.com/microsoft/HydraLab/wiki) or
[README](https://github.com/microsoft/HydraLab/blob/main/README.md) have
been reviewed and added / updated if needed (for bug fixes / features)

### Does this introduce a breaking change?
*If this introduces a breaking change for Hydra Lab users, please
describe the impact and migration path.*

- [ ] Yes
- [x] No

## How you tested it
*Please make sure the change is tested, you can test it by adding UTs,
do local test and share the screenshots, etc.*


Please check the type of change your PR introduces:
- [x] Bugfix
- [ ] Feature
- [ ] Technical design
- [ ] Build related changes
- [ ] Refactoring (no functional changes, no api changes)
- [ ] Code style update (formatting, renaming) or Documentation content
changes
- [ ] Other (please describe): 

### Feature UI screenshots or Technical design diagrams
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the tech design with PlantUML and explaining why you chose the solution
you did and what alternatives you considered, etc...*

android_client/app/src/main/java/com/microsoft/hydralab/android/client/vpn/HydraLabVpnLoggerTemp.kt

@@ -14,24 +14,6 @@ class HydraLabVpnLoggerTemp(private var filePath: String?) {
     private var lines = mutableListOf<String>()
     private var linesStaging = listOf<String>()
 
-    init {
-        if (filePath != null) {
-            filePath = Environment.getExternalStorageDirectory().toString() + filePath
-
-            val publicFolder = Path(Environment.getExternalStorageDirectory().toString()).toString()
-            val fileUrl = Path(filePath.toString()).toString()
-            if (!fileUrl.startsWith(publicFolder + File.separator)) {
-                throw IllegalArgumentException("Invalid file path")
-            }
-
-            val file = File(fileUrl ?: "")
-            if (file.exists()) {
-                file.writeText("")
-            } else {
-                file.createNewFile()
-            }
-        }
-    }
 
     fun stringify(packet: Packet): String {
         return packet.toString()
@@ -42,29 +24,10 @@ class HydraLabVpnLoggerTemp(private var filePath: String?) {
     }
 
     private fun log(line: String) {
-        lines.add(line)
-        if (lines.size >= 100) {
-            flush()
-        }
+
     }
 
     fun flush() {
-        linesStaging = lines.toList()
-        lines.clear()
-        if (filePath == null) {
-            return
-        }
-        GlobalScope.launch(Dispatchers.IO) {
-            try {
-                FileWriter(filePath, true).use { writer ->
-                    for (line in linesStaging) {
-                        writer.write(line)
-                        writer.write("\n")
-                    }
-                }
-            } catch (e: IOException) {
-                e.printStackTrace()
-            }
-        }
+
     }
 }