chore(composer): Remove an uncessary log warning

The warning is not necessary because it is not actionable. So, remove
it to simplify an upcoming change.

Signed-off-by: Frank Viernau <frank_viernau@epam.com>

plugins/package-managers/composer/src/main/kotlin/Composer.kt

@@ -241,12 +241,6 @@ class Composer(
             val homepageUrl = pkgInfo.homepage.orEmpty()
             val vcsFromPackage = parseVcsInfo(pkgInfo)
 
-            // Just warn if the version is missing as Composer itself declares it as optional, see
-            // https://getcomposer.org/doc/04-schema.md#version.
-            if (version.isEmpty()) {
-                logger.warn { "No version information found for package $rawName." }
-            }
-
             packages[rawName] = Package(
                 id = Identifier(
                     type = "Composer",

plugins/package-managers/composer/src/main/kotlin/Model.kt

@@ -35,6 +35,7 @@ data class Lockfile(
 @JsonIgnoreProperties(ignoreUnknown = true)
 data class PackageInfo(
     val name: String?,
+    // See https://getcomposer.org/doc/04-schema.md#version.
     val version: String?,
     val homepage: String?,
     val description: String?,