Exceeding github rate limit no longer exits
Exceeding github rate limit no longer exits

- Composer will fall back to downloading from source automatically
[#88515170]

Signed-off-by: Sai To Yeung <34863b63a003198e4cfe9dcefb53bc5c32a392d6@gmail.com>

zhangyanfa/yanfaz-php-buildpack,svennam92/php-buildpack,apawar2/php-buildpack,lloydbadger/test,svrc-pivotal/php-buildpack,ashish17das/cf-php-build,thesrinivas/php-buildpack,aronreid/cf-php-buildpack,chregu/cf-php-varnish-buildpack,svennam92/php-buildpack,nsharma283/php-new,hpcloud/php-buildpack,ArthurHlt/php-buildpack,hpcloud/php-buildpack,UNINETT/php-buildpack,zizhongwei/php-buildpack-master,zhangyanfa/yanfaz-php-buildpack,LeonidLe/php-buildpack,tgemal00/php-buildpack,cf-identity/php-buildpack,thesrinivas/php-buildpack,jsloyer/php-buildpack,nsharma283/php-new,hairmare/php-buildpack,cloudfoundry/php-buildpack,jsloyer/php-buildpack,lloydbadger/test,ashish17das/cf-php-build,zizhongwei/php-buildpack-master,chregu/cf-php-varnish-buildpack,svennam92/php-buildpack,Orange-OpenSource/cf-php-build-pack,zizhongwei/php-buildpack-master,jan-randis/php-db2-mysql-buildpack,hairmare/php-buildpack,jsloyer/php-buildpack,ArthurHlt/php-buildpack,hjooyang/php-buildpack-3.2.2-,lloydbadger/test,nkatre/php-buildpack,ochamber/cf-php-build-pack,cloudfoundry/php-buildpack,UNINETT/php-buildpack,nsharma283/PCF-php-buildpack,nsharma283/PCF-php-buildpack,chregu/cf-php-varnish-buildpack,cf-identity/php-buildpack,nsharma283/php-buildpack,UNINETT/php-buildpack,hjooyang/php-buildpack,jan-randis/php-db2-mysql-buildpack,hairmare/php-buildpack,ochamber/cf-php-build-pack,ochamber/cf-php-build-pack,mc500/php-buildpack,UNINETT/php-buildpack,svennam92/php-buildpack,hjooyang/php-buildpack,cloudfoundry/php-buildpack,skeeso/php-buildpack,jan-randis/php-db2-mysql-buildpack,nkatre/php-buildpack,chregu/cf-php-varnish-buildpack,hpcloud/php-buildpack,hpcloud/php-buildpack,ashish17das/cf-php-build,ochamber/cf-php-build-pack,ochamber/cf-php-build-pack,cf-identity/php-buildpack,zhangyanfa/yanfaz-php-buildpack,svrc-pivotal/php-buildpack,zhangyanfa/yanfaz-php-buildpack,thesrinivas/php-buildpack,cf-identity/php-buildpack,skeeso/php-buildpack,LeonidLe/php-buildpack,cloudfoundry/php-buildpack,LeonidLe/php-buildpack,svennam92/php-buildpack,apawar2/php-buildpack,nsharma283/php-buildpack,nsharma283/PCF-php-buildpack,hairmare/php-buildpack,arjankroontolsma/post2,hjooyang/php-buildpack-3.2.2-,hjooyang/php-buildpack-3.2.2-,cloudfoundry/php-buildpack,mc500/php-buildpack,ArthurHlt/php-buildpack,cf-identity/php-buildpack,arjankroontolsma/post2,hairmare/php-buildpack,hjooyang/php-buildpack-3.2.2-,arjankroontolsma/post2,Orange-OpenSource/cf-php-build-pack,svrc-pivotal/php-buildpack,hjooyang/php-buildpack-3.2.2-,ashish17das/cf-php-build,apawar2/php-buildpack,skeeso/php-buildpack,cloudfoundry/php-buildpack,hjooyang/php-buildpack,svennam92/php-buildpack,mc500/php-buildpack,lloydbadger/test,chregu/cf-php-varnish-buildpack,svrc-pivotal/php-buildpack,cf-identity/php-buildpack,cf-identity/php-buildpack,hjooyang/php-buildpack-3.2.2-,tgemal00/php-buildpack,tgemal00/php-buildpack,LeonidLe/php-buildpack,mc500/php-buildpack,mc500/php-buildpack,cloudfoundry/php-buildpack,nkatre/php-buildpack,hjooyang/php-buildpack,nkatre/php-buildpack,apawar2/php-buildpack,nsharma283/php-buildpack,tgemal00/php-buildpack,LeonidLe/php-buildpack,nkatre/php-buildpack,ashish17das/cf-php-build,hjooyang/php-buildpack,tgemal00/php-buildpack,zizhongwei/php-buildpack-master,nsharma283/PCF-php-buildpack,aronreid/cf-php-buildpack,thesrinivas/php-buildpack,ashish17das/cf-php-build,hpcloud/php-buildpack,thesrinivas/php-buildpack,nsharma283/php-buildpack,svrc-pivotal/php-buildpack,nsharma283/php-new,aronreid/cf-php-buildpack,skeeso/php-buildpack,thesrinivas/php-buildpack,svrc-pivotal/php-buildpack,hpcloud/php-buildpack,zizhongwei/php-buildpack-master,ArthurHlt/php-buildpack,jan-randis/php-db2-mysql-buildpack,nsharma283/php-new,ArthurHlt/php-buildpack,lloydbadger/test,chregu/cf-php-varnish-buildpack,apawar2/php-buildpack,ArthurHlt/php-buildpack,nsharma283/PCF-php-buildpack,UNINETT/php-buildpack,Orange-OpenSource/cf-php-build-pack,hairmare/php-buildpack,jsloyer/php-buildpack,aronreid/cf-php-buildpack,aronreid/cf-php-buildpack,arjankroontolsma/post2,jan-randis/php-db2-mysql-buildpack,nsharma283/php-new,hjooyang/php-buildpack,apawar2/php-buildpack,zizhongwei/php-buildpack-master,aronreid/cf-php-buildpack,tgemal00/php-buildpack,lloydbadger/test,zhangyanfa/yanfaz-php-buildpack,ochamber/cf-php-build-pack,skeeso/php-buildpack,nsharma283/php-buildpack,jsloyer/php-buildpack,arjankroontolsma/post2,jsloyer/php-buildpack,jan-randis/php-db2-mysql-buildpack,hairmare/php-buildpack,nsharma283/PCF-php-buildpack,LeonidLe/php-buildpack,UNINETT/php-buildpack,nsharma283/php-new,nsharma283/php-buildpack,skeeso/php-buildpack,arjankroontolsma/post2,nkatre/php-buildpack,mc500/php-buildpack,zhangyanfa/yanfaz-php-buildpack