* Makefile.in: Remove all targets related to building
	distributions and diffs, or INSTALL.
	* INSTALL, install1.texi: Remove.
	* configure.in: Remove mention of distdir.
	* configure: Regenerate.
	* objc/Make-lang.in: Remove mention of distdir.

ch:
	* Make-lang.in (CHILL.distdir): Remove.

cp:
	* Make-lang.in (c++.distdir): Remove.

f:
	* Make-lang.in: Remove f77.distdir and f/INSTALL.
	* INSTALL, install0.texi: Remove.

java:
	* Make-lang.in (java.distdir): Remove.

From-SVN: r37265