[Windows] Rework flutter build helper

android/flutter-build-apk.ps1

@@ -15,10 +15,6 @@
 .EXAMPLE
     .\flutter-build-apk.ps1 -buildType debug -buildName 1.0.0
     Builds a debug APK with version 1.0.0.
-
-.EXAMPLE
-    .\flutter-build-apk.ps1 -Help
-    Displays this help message.
 #>
 
 [CmdletBinding()]
@@ -66,7 +62,7 @@ $buildsMap | ConvertTo-Json | Out-File $buildsRef
 $apkDir = "..\build\app\outputs\flutter-apk"
 $baseName = "org.igox.apps.android.busylight-buddy"
 
-# Build APK using an array for arguments
+# Build an array for arguments
 $flutterArgs = @(
     "--$buildType",
     "--build-name=$buildName",