vpx_ios/README.VPXExample: Correct behavior info.
vpx_ios/README.VPXExample: Correct behavior info.

The README file was written before video timing was added. Since video now
plays at input framerate, remove the incorrect information.

Change-Id: I5de99fbf0f6d43671825aefd3ece59d553eed79a

felipebetancur/webm-tools,kuscsik/wwebm.webm-tools,Maria1099/webm.webm-tools,ericmckean/webm.webm-tools,reimaginemedia/webm.webm-tools,iniwf/webm.webm-tools,kuscsik/wwebm.webm-tools,abwiz0086/webm.webm-tools,matanbs/webm.webm-tools,zofuthan/webm-tools,gshORTON/webm.webm-tools,gshORTON/webm.webm-tools,Acidburn0zzz/webm.webm-tools,kim42083/webm.webm-tools,kleopatra999/webm.webm-tools,zofuthan/webm-tools,webmproject/webm-tools,felipebetancur/webm-tools,matanbs/webm.webm-tools,Suvarna1488/webm.webm-tools,webmproject/webm-tools,webmproject/webm-tools,altogother/webm.webm-tools,kleopatra999/webm.webm-tools,Suvarna1488/webm.webm-tools,kuscsik/wwebm.webm-tools,kalli123/webm.webm-tools,kim42083/webm.webm-tools,abwiz0086/webm.webm-tools,kim42083/webm.webm-tools,reimaginemedia/webm.webm-tools,kalli123/webm.webm-tools,ericmckean/webm.webm-tools,altogother/webm.webm-tools,reimaginemedia/webm.webm-tools,Suvarna1488/webm.webm-tools,Maria1099/webm.webm-tools,zofuthan/webm-tools,kleopatra999/webm.webm-tools,abwiz0086/webm.webm-tools,ericmckean/webm.webm-tools,Maria1099/webm.webm-tools,matanbs/webm.webm-tools,gshORTON/webm.webm-tools,zofuthan/webm-tools,Acidburn0zzz/webm.webm-tools,iniwf/webm.webm-tools,kuscsik/wwebm.webm-tools,kalli123/webm.webm-tools,felipebetancur/webm-tools,iniwf/webm.webm-tools,webmproject/webm-tools,altogother/webm.webm-tools,felipebetancur/webm-tools,Acidburn0zzz/webm.webm-tools