integration/ubuntu1604: remove shadow-variable patches

The kernel used in ubuntu1604 vagrant image does not have shadow
variable API.

Signed-off-by: Artem Savkov <asavkov@redhat.com>

test/integration/ubuntu-16.04/module-shadow.patch

@@ -1,24 +0,0 @@
-diff -Nupr src.orig/arch/x86/kvm/vmx.c src/arch/x86/kvm/vmx.c
---- src.orig/arch/x86/kvm/vmx.c	2016-12-15 19:55:57.436000000 +0000
-+++ src/arch/x86/kvm/vmx.c	2016-12-15 19:57:39.592000000 +0000
-@@ -10558,10 +10558,20 @@ static void vmx_leave_nested(struct kvm_
-  * It should only be called before L2 actually succeeded to run, and when
-  * vmcs01 is current (it doesn't leave_guest_mode() or switch vmcss).
-  */
-+#include "kpatch.h"
- static void nested_vmx_entry_failure(struct kvm_vcpu *vcpu,
- 			struct vmcs12 *vmcs12,
- 			u32 reason, unsigned long qualification)
- {
-+	int *kpatch;
-+
-+	kpatch = kpatch_shadow_alloc(vcpu, "kpatch", sizeof(*kpatch),
-+				     GFP_KERNEL);
-+	if (kpatch) {
-+		kpatch_shadow_get(vcpu, "kpatch");
-+		kpatch_shadow_free(vcpu, "kpatch");
-+	}
-+
- 	load_vmcs12_host_state(vcpu, vmcs12);
- 	vmcs12->vm_exit_reason = reason | VMX_EXIT_REASONS_FAILED_VMENTRY;
- 	vmcs12->exit_qualification = qualification;

test/integration/ubuntu-16.04/shadow-newpid-LOADED.test

@@ -1,3 +0,0 @@
-#!/bin/bash
-
-grep -q newpid: /proc/$$/status

test/integration/ubuntu-16.04/shadow-newpid.patch

@@ -1,69 +0,0 @@
-diff -Nupr src.orig/fs/proc/array.c src/fs/proc/array.c
---- src.orig/fs/proc/array.c	2016-12-15 19:55:39.080000000 +0000
-+++ src/fs/proc/array.c	2016-12-15 19:58:00.840000000 +0000
-@@ -334,13 +334,20 @@ static inline void task_seccomp(struct s
- #endif
- }
- 
-+#include "kpatch.h"
- static inline void task_context_switch_counts(struct seq_file *m,
- 						struct task_struct *p)
- {
-+	int *newpid;
-+
- 	seq_printf(m,	"voluntary_ctxt_switches:\t%lu\n"
- 			"nonvoluntary_ctxt_switches:\t%lu\n",
- 			p->nvcsw,
- 			p->nivcsw);
-+
-+	newpid = kpatch_shadow_get(p, "newpid");
-+	if (newpid)
-+		seq_printf(m, "newpid:\t%d\n", *newpid);
- }
- 
- static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
-diff -Nupr src.orig/kernel/exit.c src/kernel/exit.c
---- src.orig/kernel/exit.c	2016-12-15 19:56:00.184000000 +0000
-+++ src/kernel/exit.c	2016-12-15 19:58:00.840000000 +0000
-@@ -650,6 +650,7 @@ static void check_stack_usage(void)
- static inline void check_stack_usage(void) {}
- #endif
- 
-+#include "kpatch.h"
- void do_exit(long code)
- {
- 	struct task_struct *tsk = current;
-@@ -758,6 +759,8 @@ void do_exit(long code)
- 
- 	cgroup_exit(tsk);
- 
-+	kpatch_shadow_free(tsk, "newpid");
-+
- 	/*
- 	 * FIXME: do that only when needed, using sched_exit tracepoint
- 	 */
-diff -Nupr src.orig/kernel/fork.c src/kernel/fork.c
---- src.orig/kernel/fork.c	2016-12-15 19:56:00.184000000 +0000
-+++ src/kernel/fork.c	2016-12-15 19:58:00.840000000 +0000
-@@ -1726,6 +1726,7 @@ struct task_struct *fork_idle(int cpu)
-  * It copies the process, and if successful kick-starts
-  * it and waits for it to finish using the VM if required.
-  */
-+#include "kpatch.h"
- long _do_fork(unsigned long clone_flags,
- 	      unsigned long stack_start,
- 	      unsigned long stack_size,
-@@ -1764,6 +1765,13 @@ long _do_fork(unsigned long clone_flags,
- 	if (!IS_ERR(p)) {
- 		struct completion vfork;
- 		struct pid *pid;
-+		int *newpid;
-+		static int ctr = 0;
-+
-+		newpid = kpatch_shadow_alloc(p, "newpid", sizeof(*newpid),
-+					     GFP_KERNEL);
-+		if (newpid)
-+			*newpid = ctr++;
- 
- 		trace_sched_process_fork(current, p);
-