stop reverting turning on nested virtualization by default

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

patches/kernel/0005-Revert-KVM-VMX-enable-nested-virtualization-by-defau.patch

@@ -1,32 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Thomas Lamprecht <t.lamprecht@proxmox.com>
-Date: Fri, 7 Jun 2019 21:16:42 +0200
-Subject: [PATCH] Revert "KVM: VMX: enable nested virtualization by default"
-
-This reverts commit 1e58e5e59148916fa43444a406335a990783fb78
-
-As we're not yet there, and this effectively breaks live migration
-for all VMs using host or +vmx which did not manually enabled nesting
-
-Those which already enabled nesting manually have already breakage,
-but that was something to expect. The situation will get better in
-the future (probably post qemu 4.1).
-
-Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
----
- arch/x86/kvm/vmx/vmx.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
-index 2a1ed3aae100..c5dd076e8e61 100644
---- a/arch/x86/kvm/vmx/vmx.c
-+++ b/arch/x86/kvm/vmx/vmx.c
-@@ -103,7 +103,7 @@ module_param(enable_apicv, bool, S_IRUGO);
-  * VMX and be a hypervisor for its own guests. If nested=0, guests may not
-  * use VMX instructions.
-  */
--static bool __read_mostly nested = 1;
-+static bool __read_mostly nested = 0;
- module_param(nested, bool, S_IRUGO);
- 
- static u64 __read_mostly host_xss;