Remove alternate worksrcpath

[Rainer Müller]

Hello,

as of MacPorts 1.8 we support using an alternate worksrcpath in
~/.macports for compiling without root privileges. However, some
releases later we are now dropping privileges to a separate macports
user and using a different home directory to isolate better from
external configurations.

Therefore I propose to remove this feature completely. Users should
either always use sudo or make a separate non-root installation.

Please see the attached patch. If there are no objections, I am going to
apply this.

Rainer

$ diffstat remove-altworkpath.diff
 port/port.tcl            |    4 +-
 port1.0/portchecksum.tcl |    8 +----
 port1.0/portclean.tcl    |   60 +++------------------------------------
 port1.0/portextract.tcl  |    4 --
 port1.0/portfetch.tcl    |   10 ------
 port1.0/portmain.tcl     |   28 +-----------------
 port1.0/portpatch.tcl    |    4 --
 port1.0/porttrace.tcl    |    2 -
 port1.0/portutil.tcl     |   37 +++---------------------
 9 files changed, 23 insertions(+), 134 deletions(-)
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