Makefile-lan.in (ada.mostlyclean): Remove gnatbind and gnat1.

Makefile-lan.in (ada.mostlyclean): Remove gnatbind and gnat1.

ada/
* gcc-interface/Makefile-lan.in (ada.mostlyclean): Remove gnatbind
and gnat1.
cp/
* Make-lang.in (c++.mostlyclean): Remove xg++, g++-cross, and cc1plus.
fortran/
* Make-lang.in (fortran.mostlyclean): Remove gfortran and
gfortran-cross.
go/
* Make-lang.in (go.mostlyclean): Remove gccgo, gccgo-cross, and go1.
jit/
* Make-lang.in (jit.mostlyclean): Remove shared libraries and object
files.
objc/
* Make-lang.in (objc.mostlyclean): Remove cc1obj.
objcp/
* Make-lang.in (obj-c++.mostlyclean): Remove cc1objplus.

From-SVN: r222492