libvpd: Do not throw exception in destructor
libvpd: Do not throw exception in destructor

Looks like its not a good idea to throw exception from destructor. Lets get rid
of below warning.

Warning message from cppcheck:

Error: CPPCHECK_WARNING (CWE-460):
libvpd-2.2.4/src/vpddbenv.cpp:128: error[exceptThrowInDestructor]: Exception thrown in destructor.
#  126|   			l.log( message.str( ), LOG_ERR );
#  127|   			VpdException ve( message.str( ) );
#  128|-> 			throw ve;
#  129|   		}
#  130|   	}

Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>

kamalesh-babulal/libvpd,kamalesh-babulal/libvpd,kamalesh-babulal/libvpd