libgcc2.c (__shtab): Remove __shtab variable.

        * libgcc2.c (__shtab): Remove __shtab variable.
        * libgcc-std.ver (GCC_3.0): Remove __shtab from symbol list.
        * Makefile.in (LIB2FUNCS): Remove _shtab from list of library
        members.
Forgot to commit with above change.

From-SVN: r37369