public String constants in MavenClasspath already exist

[simonjenga]

public String constants in com.jcabi.aether.MavenClasspath already exist and are defined in the interface org.apache.maven.artifact.Artifact

https://github.com/apache/maven/blob/master/maven-artifact/src/main/java/org/apache/maven/artifact/Artifact.java

https://maven.apache.org/ref/3-LATEST/maven-artifact/apidocs/index.html?overview-summary.html

Let's use those defined in the interface class and delete those in our implementation so as to avoid duplication.

[dmarkov]

@yegor256 please take a look at it and dispatch (see par.21)

[simonjenga]

@dmarkov I am still waiting for a response on this issue... :eyes: