Remove unused main.yml file

build/main.sh

-#!/bin/bash
-
-FORMAT_FILE=../README.md
-echo "running format validation..."
-./validate_format.py $FORMAT_FILE
-if [[ $? != 0 ]]; then
-    echo "format validation failed!"
-    exit 1
-fi
-echo "format validation passed!"
-if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then
-    echo "running on $TRAVIS_BRANCH branch - skipping Pull Request logic"
-    exit 0
-fi
-
-echo "running on Pull Request #$TRAVIS_PULL_REQUEST"
-DIFF_URL="https://patch-diff.githubusercontent.com/raw/toddmotto/public-apis/pull/$TRAVIS_PULL_REQUEST.diff"
-curl $DIFF_URL > diff.txt
-echo "------- BEGIN DIFF -------"
-cat diff.txt
-echo "-------- END DIFF --------"
-cat diff.txt | egrep "\+" > additions.txt
-echo "------ BEGIN ADDITIONS -----"
-cat additions.txt
-echo "------- END ADDITIONS ------"
-LINK_FILE=additions.txt
-
-echo "running link validation..."
-./validate_links.py $LINK_FILE
-if [[ $? != 0 ]]; then
-    echo "link validation failed!"
-    exit 1
-else
-    echo "link validation passed!"
-fi