Revert workaround for buggy cpu detection because regressions

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Merge tag 'mips-fixes_5.15_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fix from Thomas Bogendoerfer:
 "Revert workaround for buggy cpu detection because regressions"

* tag 'mips-fixes_5.15_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: Revert "add support for buggy MT7621S core detection"

arch/mips/include/asm/mips-cps.h

@@ -10,8 +10,6 @@
 #include <linux/io.h>
 #include <linux/types.h>
 
-#include <asm/mips-boards/launch.h>
-
 extern unsigned long __cps_access_bad_size(void)
 	__compiletime_error("Bad size for CPS accessor");
 
@@ -167,30 +165,11 @@ static inline uint64_t mips_cps_cluster_config(unsigned int cluster)
  */
 static inline unsigned int mips_cps_numcores(unsigned int cluster)
 {
-	unsigned int ncores;
-
 	if (!mips_cm_present())
 		return 0;
 
 	/* Add one before masking to handle 0xff indicating no cores */
-	ncores = (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES;
-
-	if (IS_ENABLED(CONFIG_SOC_MT7621)) {
-		struct cpulaunch *launch;
-
-		/*
-		 * Ralink MT7621S SoC is single core, but the GCR_CONFIG method
-		 * always reports 2 cores. Check the second core's LAUNCH_FREADY
-		 * flag to detect if the second core is missing. This method
-		 * only works before the core has been started.
-		 */
-		launch = (struct cpulaunch *)CKSEG0ADDR(CPULAUNCH);
-		launch += 2; /* MT7621 has 2 VPEs per core */
-		if (!(launch->flags & LAUNCH_FREADY))
-			ncores = 1;
-	}
-
-	return ncores;
+	return (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES;
 }
 
 /**