[ddc] Remove print from expression compiler.

Change-Id: I14d1428310b3075ed43c492ead2bd20f734ff974
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/400480
Auto-Submit: Nate Biggs <natebiggs@google.com>
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>

pkg/dev_compiler/lib/src/kernel/expression_compiler.dart

@@ -155,7 +155,6 @@ class ExpressionCompiler {
         // '$36' in JS. We do a similar expansion here to normalize the names.
         final jsNamePrefix =
             js_ast.toJSIdentifier(dartName).replaceAll('\$', '\\\$');
-        print(jsNamePrefix);
         final regexp = RegExp(r'^' + jsNamePrefix + r'(\$[0-9]*)?$');
         for (var i = 0; i < jsNames.length; i++) {
           final jsName = jsNames[i];