- removed temporary work-arounds from bignum_test, not needed anymore
- removed temporary work-arounds from bignum_test, not needed anymore

R=r
DELTA=93  (0 added, 61 deleted, 32 changed)
OCL=22348
CL=22366

tianon/debian-golang,apparentlymart/golang,gnanderson/go,tianon/debian-golang,nightlyone/golang,ssrl/go,dsriram/golang,bdwalton/debian-golang,tv42/old-go,nightlyone/golang,wesolows/golang-old,bdwalton/debian-golang,apparentlymart/golang,gnanderson/go,firebitsbr/golang-old,dsriram/golang,h8liu/golang,nightlyone/golang,h8liu/golang,wesolows/golang-old,dsriram/golang,ssrl/go,dsriram/golang,gnanderson/go,wesolows/golang,nightlyone/golang,firebitsbr/golang-old,h8liu/golang,pombredanne/go-deleteme,wesolows/golang,pombredanne/go-deleteme,nightlyone/golang,wesolows/golang,tianon/debian-golang,tv42/old-go,ssrl/go,h8liu/golang,wesolows/golang,tianon/debian-golang,h8liu/golang,gnanderson/go,wesolows/golang-old,pombredanne/go-deleteme,wesolows/golang-old,dsriram/golang,h8liu/golang,firebitsbr/golang-old,firebitsbr/golang-old,dsriram/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,wesolows/golang,tianon/debian-golang,tv42/old-go,apparentlymart/golang,nightlyone/golang,wesolows/golang,gnanderson/go,ssrl/go,bdwalton/debian-golang,gnanderson/go,bdwalton/debian-golang,tianon/debian-golang,pombredanne/go-deleteme,firebitsbr/golang-old,tv42/old-go,wesolows/golang-old,bdwalton/debian-golang,h8liu/golang,gnanderson/go,tv42/old-go,tianon/debian-golang,tv42/old-go,tianon/debian-golang,firebitsbr/golang-old,firebitsbr/golang-old,wesolows/golang,apparentlymart/golang,wesolows/golang-old,bdwalton/debian-golang,firebitsbr/golang-old,ssrl/go,tv42/old-go,nightlyone/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,dsriram/golang,pombredanne/go-deleteme,ssrl/go,ssrl/go,bdwalton/debian-golang,bdwalton/debian-golang,wesolows/golang-old