Remove support for the old-style intrinsics

Closes #2042
Closes #1981

src/etc/gen-intrinsics

@@ -1,27 +0,0 @@
-#!/bin/sh
-
-# This script generates new definitions for the intrinsics using
-# clang. This is not currently in the Makefile to avoid any dependency
-# on clang.
-
-for ARCH in i386 x86_64
-do
-    if [ $ARCH = "i386" ]
-    then
-	BITS=32
-    else
-	BITS=64
-    fi
-
-    clang++ -emit-llvm -S -m$BITS -O3 -Isrc/rt/isaac -Isrc/rt/uthash \
-        -Isrc/rt/arch/$ARCH -Isrc/rt -fno-stack-protector \
-        -o src/rt/intrinsics/intrinsics.$ARCH.ll.in \
-        src/rt/intrinsics/intrinsics.cpp
-    sed -i .orig \
-        -e 's/^target datalayout =/; target datalayout =/' \
-        src/rt/intrinsics/intrinsics.$ARCH.ll.in
-    sed -i .orig \
-        -e 's/^target triple = "[^"]*"/target triple = "@CFG_TARGET_TRIPLE@"/' \
-        src/rt/intrinsics/intrinsics.$ARCH.ll.in
-    rm src/rt/intrinsics/intrinsics.$ARCH.ll.in.orig
-done