Minor. Remove useless code related to IJ 173 and AS 3.1 in build scripts

plugins/android-extensions/android-extensions-idea/build.gradle.kts

@@ -57,7 +57,7 @@ dependencies {
         testRuntime(intellijPluginDep("maven"))
     }
     testRuntime(intellijPluginDep("android"))
-    (Platform[181].orHigher.or(Ide.AS31)) {
+    if (Platform[181].orHigher()) {
         testRuntime(intellijPluginDep("smali"))
     }
 }

plugins/uast-kotlin/build.gradle.kts

@@ -18,11 +18,6 @@ dependencies {
         compileOnly(intellijDep()) { includeJars("java-api", "java-impl", "asm-all", rootProject = rootProject) }
     }
 
-    Platform[173].orLower {
-        compile(project(":idea:idea-core"))
-        compileOnly(intellijDep()) { includeJars("openapi", "idea", "util", "extensions", "asm-all", rootProject = rootProject) }
-    }
-
     testCompile(project(":kotlin-test:kotlin-test-jvm"))
     testCompile(projectTests(":compiler:tests-common"))
     testCompile(commonDep("junit:junit"))
@@ -34,10 +29,6 @@ dependencies {
         testCompileOnly(intellijDep()) { includeJars("java-api", "java-impl") }
     }
 
-    Platform[173].orLower {
-        testCompileOnly(intellijDep()) { includeJars("idea_rt") }
-    }
-
     testCompile(project(":idea:idea-native")) { isTransitive = false }
     testCompile(project(":idea:idea-gradle-native")) { isTransitive = false }