KVM: arm64: Remove redundant Spectre-v2 code from kvm_map_vector()

'__kvm_bp_vect_base' is only used when dealing with the hardened vectors
so remove the redundant assignments in kvm_map_vectors().
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20201113113847.21619-2-will@kernel.org

arch/arm64/kvm/arm.c

@@ -1306,11 +1306,6 @@ static int kvm_map_vectors(void)
 	 * !SV2 +  HEL2 -> allocate one vector slot and use exec mapping
 	 *  SV2 +  HEL2 -> use hardened vectors and use exec mapping
 	 */
-	if (cpus_have_const_cap(ARM64_SPECTRE_V2)) {
-		__kvm_bp_vect_base = kvm_ksym_ref(__bp_harden_hyp_vecs);
-		__kvm_bp_vect_base = kern_hyp_va(__kvm_bp_vect_base);
-	}
-
 	if (cpus_have_const_cap(ARM64_HARDEN_EL2_VECTORS)) {
 		phys_addr_t vect_pa = __pa_symbol(__bp_harden_hyp_vecs);
 		unsigned long size = __BP_HARDEN_HYP_VECS_SZ;