Update installation instructions for Arch Linux

The bcc packages were recently moved from the AUR to the standard Arch
repos, so the installation instructions for Arch should be updated to
reflect that.

Additionally, the Arch "linux-lts" package was upgraded to 4.4.7 in
April 2016, so it is safe to assume that any Arch installations that are
still in use have been upgraded by this point. Therefore, the note about
upgrading to kernel 4.3.1 is removed.

INSTALL.md

@@ -4,7 +4,7 @@
 * [Packages](#packages)
  - [Ubuntu](#ubuntu---binary)
  - [Fedora](#fedora---binary)
- - [Arch](#arch---aur)
+ - [Arch](#arch---binary)
  - [Gentoo](#gentoo---portage)
  - [openSUSE](#opensuse---binary)
  - [RHEL](#rhel---binary)
@@ -160,15 +160,12 @@ echo -e '[iovisor]\nbaseurl=https://repo.iovisor.org/yum/main/f27/$basearch\nena
 sudo dnf install bcc-tools kernel-devel-$(uname -r) kernel-headers-$(uname -r)
 ```
 
-## Arch - AUR
+## Arch - Binary
 
-Upgrade the kernel to minimum 4.3.1-1 first; the ```CONFIG_BPF_SYSCALL=y``` configuration was not added until [this kernel release](https://bugs.archlinux.org/task/47008).
-
-Install these packages using any AUR helper such as [pacaur](https://aur.archlinux.org/packages/pacaur), [yaourt](https://aur.archlinux.org/packages/yaourt), [cower](https://aur.archlinux.org/packages/cower), etc.:
+bcc is available in the standard Arch repos, so it can be installed with the `pacman` command:
 ```
-bcc bcc-tools python-bcc
+# pacman -S bcc bcc-tools python-bcc
 ```
-All build and install dependencies are listed [in the PKGBUILD](https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=bcc) and should install automatically.
 
 ## Gentoo - Portage