apr-util: clean up Makefile and remove patch

- removes 001-automake-compat.patch:
  Looks like this was meant as a workaround for a libtool issue. But it
  doesn't appear to be needed anymore.

- cleans up installation defines (uses macros, cleans up sed scripts,
  removes gratuitous slashes & whitespaces)

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

libs/apr-util/patches/001-automake-compat.patch

@@ -1,21 +0,0 @@
---- a/Makefile.in
-+++ b/Makefile.in
-@@ -8,6 +8,7 @@ APRUTIL_MAJOR_VERSION=@APRUTIL_MAJOR_VER
- APRUTIL_DOTTED_VERSION=@APRUTIL_DOTTED_VERSION@
- 
- srcdir = @srcdir@
-+top_builddir = @top_builddir@
- VPATH = @srcdir@
- 
- INCLUDES = @APRUTIL_PRIV_INCLUDES@ @APR_INCLUDES@ @APRUTIL_INCLUDES@
---- a/configure.in
-+++ b/configure.in
-@@ -41,6 +41,8 @@ AC_SUBST(APU_CONFIG_LOCATION)
- AC_CANONICAL_SYSTEM
- 
- AC_PROG_INSTALL
-+AC_PROG_LIBTOOL
-+LT_INIT
- 
- # Use -no-install or -no-fast-install to link the test 
- # programs on all platforms but Darwin, where it would cause