Update build.gradle

Author: jordanqin

QCloudCosXml/build.gradle

@@ -40,7 +40,6 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.4.3'
         classpath "com.github.dcendents:android-maven-gradle-plugin:2.0"
-        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.8.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.github.kezong:fat-aar:1.3.6'
         // NOTE: Do not place your application dependencies here; they belong