Delete vendored code and update CI to Go 1.13 (#158)

As the Go community transitions to using the modules ecosystem,
we want to only support one way of managing dependencies.
So this change moves to only using Go modules for dependency management.

This means that our effective minimum Go version increases to Go 1.11.
To account for this, we also update:
  - the documentation
  - Makefile
  - CI scripts

1 files changed, 0 insertions, 50 deletions

diff --git a/vendor/golang.org/x/sys/unix/zptracemips_linux.go b/vendor/golang.org/x/sys/unix/zptracemips_linux.go
deleted file mode 100644
index c431131..0000000
--- a/vendor/golang.org/x/sys/unix/zptracemips_linux.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// Code generated by linux/mkall.go generatePtracePair(mips, mips64). DO NOT EDIT.
-
-// +build linux
-// +build mips mips64
-
-package unix
-
-import "unsafe"
-
-// PtraceRegsMips is the registers used by mips binaries.
-type PtraceRegsMips struct {
-	Regs     [32]uint64
-	Lo       uint64
-	Hi       uint64
-	Epc      uint64
-	Badvaddr uint64
-	Status   uint64
-	Cause    uint64
-}
-
-// PtraceGetRegsMips fetches the registers used by mips binaries.
-func PtraceGetRegsMips(pid int, regsout *PtraceRegsMips) error {
-	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
-}
-
-// PtraceSetRegsMips sets the registers used by mips binaries.
-func PtraceSetRegsMips(pid int, regs *PtraceRegsMips) error {
-	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
-}
-
-// PtraceRegsMips64 is the registers used by mips64 binaries.
-type PtraceRegsMips64 struct {
-	Regs     [32]uint64
-	Lo       uint64
-	Hi       uint64
-	Epc      uint64
-	Badvaddr uint64
-	Status   uint64
-	Cause    uint64
-}
-
-// PtraceGetRegsMips64 fetches the registers used by mips64 binaries.
-func PtraceGetRegsMips64(pid int, regsout *PtraceRegsMips64) error {
-	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
-}
-
-// PtraceSetRegsMips64 sets the registers used by mips64 binaries.
-func PtraceSetRegsMips64(pid int, regs *PtraceRegsMips64) error {
-	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
-}