Remove semantic tokens for string interpolations

These cover up string interpolations and thus generally produce a worse
highlighting than before.

Author: fwcd

server/src/main/kotlin/org/javacs/kt/semantictokens/SemanticTokens.kt

@@ -187,9 +187,8 @@ private fun elementToken(element: PsiElement, bindingContext: BindingContext): S
 
         // Literals and string interpolations
 
-        is KtSimpleNameStringTemplateEntry, is KtBlockStringTemplateEntry ->
+        is KtSimpleNameStringTemplateEntry ->
             SemanticToken(elementRange, SemanticTokenType.INTERPOLATION_ENTRY)
-        is KtStringTemplateExpression -> SemanticToken(elementRange, SemanticTokenType.STRING)
         is PsiLiteralExpression -> {
             val tokenType = when (element.type) {
                 PsiType.INT, PsiType.LONG, PsiType.DOUBLE -> SemanticTokenType.NUMBER

server/src/test/kotlin/org/javacs/kt/SemanticTokensTest.kt

@@ -22,7 +22,6 @@ class SemanticTokensTest : SingleFileTestFixture("semantictokens", "SemanticToke
         val expectedConst = sequenceOf(
             SemanticToken(range(constLine, 5, constLine, 13), SemanticTokenType.PROPERTY, setOf(SemanticTokenModifier.DECLARATION, SemanticTokenModifier.READONLY)), // constant
             SemanticToken(range(constLine, 15, constLine, 21), SemanticTokenType.CLASS), // String
-            SemanticToken(range(constLine, 24, constLine, 40), SemanticTokenType.STRING), // "test $variable"
             SemanticToken(range(constLine, 30, constLine, 39), SemanticTokenType.INTERPOLATION_ENTRY), // $variable
             SemanticToken(range(constLine, 31, constLine, 39), SemanticTokenType.PROPERTY), // variable
         )