[K/N] Remove old Compiler and Meta Version ^KT-55677 Fixed

* Replace it with KotlinCompilerVersion
* K/N version should be set now with `deployVersion`.
* Cleanup deprecated functions in older versions
 of the Gradle plugin
* Cleanup tests for older versions of compiler downloader

Merge-request: KT-MR-8436
Merged-by: Pavel Punegov <Pavel.Punegov@jetbrains.com>

compiler/util-klib/src/org/jetbrains/kotlin/library/SearchPathResolver.kt

@@ -1,6 +1,5 @@
 package org.jetbrains.kotlin.library
 
-import org.jetbrains.kotlin.konan.CompilerVersion
 import org.jetbrains.kotlin.konan.file.File
 import org.jetbrains.kotlin.library.impl.createKotlinLibraryComponents
 import org.jetbrains.kotlin.library.impl.isPre_1_4_Library
@@ -223,12 +222,6 @@ abstract class KotlinLibrarySearchPathResolver<L : KotlinLibrary>(
     }
 }
 
-fun CompilerVersion.compatible(other: CompilerVersion) =
-    this.major == other.major
-            && this.minor == other.minor
-            && this.maintenance == other.maintenance
-
-
 // This is a library resolver aware of attributes shared between platforms,
 // such as abi version.
 // JS and Native resolvers are inherited from this one.