Revert "autoconf: don't choke on m4-native in ASSUME_PROVIDED"
Revert "autoconf: don't choke on m4-native in ASSUME_PROVIDED"

Drop this for now, to avoid risk of introduction of another problem.  Will
revisit and verify both.

This reverts commit 173540c96aac632de5ff1a78b25cdc49201ee27e.

openembedded/openembedded,hulifox008/openembedded,mrchapp/arago-oe-dev,hulifox008/openembedded,Martix/Eonos,openembedded/openembedded,buglabs/oe-buglabs,sampov2/audio-openembedded,dellysunnymtech/sakoman-oe,Martix/Eonos,rascalmicro/openembedded-rascal,JamesAng/oe,SIFTeam/openembedded,SIFTeam/openembedded,rascalmicro/openembedded-rascal,xifengchuo/openembedded,dellysunnymtech/sakoman-oe,JamesAng/oe,Martix/Eonos,xifengchuo/openembedded,rascalmicro/openembedded-rascal,SIFTeam/openembedded,dellysunnymtech/sakoman-oe,trini/openembedded,sutajiokousagi/openembedded,giobauermeister/openembedded,BlackPole/bp-openembedded,BlackPole/bp-openembedded,nx111/openembeded_openpli2.1_nx111,sentient-energy/emsw-oe-mirror,sampov2/audio-openembedded,sledz/oe,SIFTeam/openembedded,SIFTeam/openembedded,JamesAng/goe,trini/openembedded,scottellis/overo-oe,thebohemian/openembedded,openembedded/openembedded,nx111/openembeded_openpli2.1_nx111,trini/openembedded,SIFTeam/openembedded,giobauermeister/openembedded,sentient-energy/emsw-oe-mirror,yyli/overo-oe,xifengchuo/openembedded,sampov2/audio-openembedded,trini/openembedded,Martix/Eonos,sentient-energy/emsw-oe-mirror,mrchapp/arago-oe-dev,John-NY/overo-oe,mrchapp/arago-oe-dev,rascalmicro/openembedded-rascal,thebohemian/openembedded,yyli/overo-oe,BlackPole/bp-openembedded,sentient-energy/emsw-oe-mirror,nx111/openembeded_openpli2.1_nx111,John-NY/overo-oe,scottellis/overo-oe,openembedded/openembedded,dellysunnymtech/sakoman-oe,nx111/openembeded_openpli2.1_nx111,buglabs/oe-buglabs,BlackPole/bp-openembedded,giobauermeister/openembedded,openembedded/openembedded,JamesAng/goe,buglabs/oe-buglabs,dellysunnymtech/sakoman-oe,hulifox008/openembedded,giobauermeister/openembedded,trini/openembedded,sampov2/audio-openembedded,thebohemian/openembedded,sampov2/audio-openembedded,sutajiokousagi/openembedded,Martix/Eonos,hulifox008/openembedded,thebohemian/openembedded,dave-billin/overo-ui-moos-auv,JamesAng/goe,BlackPole/bp-openembedded,John-NY/overo-oe,openembedded/openembedded,JamesAng/goe,xifengchuo/openembedded,sutajiokousagi/openembedded,trini/openembedded,John-NY/overo-oe,openembedded/openembedded,John-NY/overo-oe,hulifox008/openembedded,openembedded/openembedded,mrchapp/arago-oe-dev,dellysunnymtech/sakoman-oe,BlackPole/bp-openembedded,rascalmicro/openembedded-rascal,sentient-energy/emsw-oe-mirror,sledz/oe,hulifox008/openembedded,thebohemian/openembedded,rascalmicro/openembedded-rascal,sutajiokousagi/openembedded,sutajiokousagi/openembedded,BlackPole/bp-openembedded,dave-billin/overo-ui-moos-auv,giobauermeister/openembedded,sampov2/audio-openembedded,buglabs/oe-buglabs,dellysunnymtech/sakoman-oe,John-NY/overo-oe,sledz/oe,sledz/oe,nx111/openembeded_openpli2.1_nx111,xifengchuo/openembedded,xifengchuo/openembedded,sutajiokousagi/openembedded,nx111/openembeded_openpli2.1_nx111,SIFTeam/openembedded,xifengchuo/openembedded,yyli/overo-oe,dave-billin/overo-ui-moos-auv,JamesAng/oe,hulifox008/openembedded,buglabs/oe-buglabs,JamesAng/goe,JamesAng/goe,trini/openembedded,sentient-energy/emsw-oe-mirror,thebohemian/openembedded,thebohemian/openembedded,sledz/oe,yyli/overo-oe,scottellis/overo-oe,sutajiokousagi/openembedded,mrchapp/arago-oe-dev,Martix/Eonos,openembedded/openembedded,yyli/overo-oe,buglabs/oe-buglabs,yyli/overo-oe,giobauermeister/openembedded,giobauermeister/openembedded,JamesAng/oe,rascalmicro/openembedded-rascal,JamesAng/goe,mrchapp/arago-oe-dev,John-NY/overo-oe,rascalmicro/openembedded-rascal,scottellis/overo-oe,openembedded/openembedded,sledz/oe,JamesAng/oe,scottellis/overo-oe,yyli/overo-oe,openembedded/openembedded,xifengchuo/openembedded,JamesAng/oe,Martix/Eonos,sledz/oe,scottellis/overo-oe,nx111/openembeded_openpli2.1_nx111,dellysunnymtech/sakoman-oe,nx111/openembeded_openpli2.1_nx111,giobauermeister/openembedded,buglabs/oe-buglabs,scottellis/overo-oe,dave-billin/overo-ui-moos-auv,giobauermeister/openembedded,dave-billin/overo-ui-moos-auv,dellysunnymtech/sakoman-oe,yyli/overo-oe,JamesAng/oe,xifengchuo/openembedded,mrchapp/arago-oe-dev,dave-billin/overo-ui-moos-auv,buglabs/oe-buglabs,dave-billin/overo-ui-moos-auv,sentient-energy/emsw-oe-mirror,sampov2/audio-openembedded