Remove sh-symbianelf support
    
    bfd/
    	* Makefile.am: Remove sh-symbianelf support.
    	* config.bfd: Likewise.
    	* configure.ac: Likewise.
    	* targets.c: Likewise.
    	* elf32-sh-symbian.c: Delete.
    	* Makefile.in: Regenerate.
    	* configure: Regenerate.
    	* po/SRC-POTFILES.in: Regenerate.
    gas/
    	* config/tc-sh.c: Remove sh-symbianelf support.
    	* config/tc-sh.h: Likewise.
    	* configure.ac: Likewise.
    	* configure.tgt: Likewise.
    	* testsuite/gas/sh/reg-prefix.d: Likewise.
    	* testsuite/gas/sh/sh2a-pic.d: Likewise.
    	* config.in: Regenerate.
    	* configure: Regenerate.
    ld/
    	* Makefile.am: Remove sh-symbianelf support.
    	* configure.tgt: Likewise.
    	* emulparams/shlsymbian.sh: Delete.
    	* scripttempl/elf32sh-symbian.sc: Delete.
    	* Makefile.in: Regenerate.
    	* po/BLD-POTFILES.in: Regenerate.