Do not use Class Sample in .inx file

[pc386]

Fixes this error when running cargo make in EWDK: Windows 11, version 24H2 EWDK (released May 22, 2024) with Visual Studio Buildtools 17.8.6, 26100

Validating echo_2.inf
ERROR(1284) in C:\Users\xxx\Documents\develop\Windows-rust-driver-samples\target\debug\echo_2.inf, line 10: Class "Sample" is reserved for use by Microsoft.
ERROR(1285) in C:\Users\xxx\Documents\develop\Windows-rust-driver-samples\target\debug\echo_2.inf, line 28: Cannot specify [ClassInstall32] section for Microsoft-defined class.
INF is NOT VALID

[wmmc88]

This is a known bug with 24H2 not handling /samples infverifier setting. It is addressed by microsoft/windows-drivers-rs#143 in WDR + accompanying samples pr in #18 (pending new crate release)