scsi: mpt3sas: Remove CPU arch check to determine perf_mode

Currently default perf_mode is set to 'balanced' on Intel architecture
machines and on other machines default perf_mode is set to 'latency' mode.

This CPU architecture check is removed and the default perf_mode mode is
set to 'balanced' mode on all machines.

User can choose the required performance mode using perf_mode module
parameter.

Signed-off-by: Sreekanth Reddy <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/mpt3sas/mpt3sas_base.c

···
 	"interrupt coalescing is enabled on all queues,\n\t\t"
 	"2 - latency: high iops mode is disabled &\n\t\t"
 	"interrupt coalescing is enabled on all queues with timeout value 0xA,\n"
-	"\t\tdefault - on Intel architecture, default perf_mode is\n\t\t"
-	" 'balanced' and in others architectures the default mode is 'latency'"
+	"\t\tdefault - default perf_mode is 'balanced'"
 	);
 
 enum mpt3sas_perf_mode {
···
 
 	if (perf_mode == MPT_PERF_MODE_DEFAULT) {
 
-#if defined(CONFIG_X86)
-		/*
-		 * Use global variable boot_cpu_data.x86_vendor to
-		 * determine whether the architecture is Intel or not.
-		 */
-		if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) {
-			ioc->high_iops_queues = 0;
-			return;
-		}
-#else
-		ioc->high_iops_queues = 0;
-		return;
-#endif
 		speed = pcie_get_speed_cap(ioc->pdev);
 		dev_info(&ioc->pdev->dev, "PCIe device speed is %s\n",
 		     speed == PCIE_SPEED_2_5GT ? "2.5GHz" :