Revert "kni: fix compilation on SLES15-SP3"

This reverts commit de7bca5.
It was found that this breaks other SUSE versions.
We will pick the final fix from main once we have it.

kernel/linux/kni/compat.h

@@ -133,9 +133,7 @@
 
 #if KERNEL_VERSION(5, 6, 0) <= LINUX_VERSION_CODE || \
 	(defined(RHEL_RELEASE_CODE) && \
-	 RHEL_RELEASE_VERSION(8, 3) <= RHEL_RELEASE_CODE) || \
-	(defined(CONFIG_SUSE_KERNEL) && \
-	 KERNEL_VERSION(5, 3, 18) <= LINUX_VERSION_CODE)
+	 RHEL_RELEASE_VERSION(8, 3) <= RHEL_RELEASE_CODE)
 #define HAVE_TX_TIMEOUT_TXQUEUE
 #endif