diff --git a/pkg/ring0/kernel_amd64.go b/pkg/ring0/kernel_amd64.go
index e2e9f88c0..0f90d3a2d 100644
--- a/pkg/ring0/kernel_amd64.go
+++ b/pkg/ring0/kernel_amd64.go
@@ -338,21 +338,3 @@ func SetCPUIDFaulting(on bool) bool {
 func ReadCR2() uintptr {
 	return readCR2()
 }
-
-// kernelMXCSR is the value of the mxcsr register in the Sentry.
-//
-// The MXCSR control configuration is initialized once and never changed. Look
-// at src/cmd/compile/abi-internal.md in the golang sources for more details.
-var kernelMXCSR uint32
-
-// RestoreKernelFPState restores the Sentry floating point state.
-//
-//go:nosplit
-func RestoreKernelFPState() {
-	// Restore the MXCSR control configuration.
-	ldmxcsr(&kernelMXCSR)
-}
-
-func init() {
-	stmxcsr(&kernelMXCSR)
-}
diff --git a/pkg/ring0/kernel_arm64.go b/pkg/ring0/kernel_arm64.go
index 79f85ff50..889150589 100644
--- a/pkg/ring0/kernel_arm64.go
+++ b/pkg/ring0/kernel_arm64.go
@@ -90,9 +90,3 @@ func (c *CPU) SwitchToUser(switchOpts SwitchOpts) (vector Vector) {
 
 	return
 }
-
-// RestoreKernelFPState restores the Sentry floating point state.
-//
-//go:nosplit
-func RestoreKernelFPState() {
-}