Revert "integrate travis with slack"
Revert "integrate travis with slack"

This reverts commit c30bea42d03e1dfe7bdcf607238e4694a3a0211b.

FFIG/ffig,jbcoe/C_API_generation,jbcoe/C_API_generation,FFIG/ffig,FFIG/ffig,FFIG/ffig,FFIG/ffig,jbcoe/C_API_generation,FFIG/ffig,FFIG/ffig,jbcoe/C_API_generation,FFIG/ffig