Revert "McuSupport: CMake expects programmer path to include the bin folder"

This reverts commit e558fc4d1f.

Reason for revert: Because this is incompatible with how QtCreator 8
makes kits, it breaks the kit when changing versions. A fix for the
original issue was made in Qt for MCUs to accommodate not having bin
the path, allowing the detectionPath to be bin/... in matching with
legacy code.

Change-Id: I64c670398287b3ec9beec0aa6fac02325b322664
Reviewed-by: Yasser Grimes <yasser.grimes@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/mcusupport/mcusupportsdk.cpp

@@ -369,8 +369,8 @@ McuPackagePtr createStm32CubeProgrammerPackage(const SettingsHandler::Ptr &setti
         FilePath defaultPath = {};
 
     const FilePath detectionPath = FilePath::fromUserInput(
-        QLatin1String(Utils::HostOsInfo::isWindowsHost() ? "STM32_Programmer_CLI.exe"
-                                                         : "STM32_Programmer.sh"));
+        QLatin1String(Utils::HostOsInfo::isWindowsHost() ? "bin/STM32_Programmer_CLI.exe"
+                                                         : "bin/STM32_Programmer.sh"));
 
     return McuPackagePtr{
         new McuPackage(settingsHandler,