Fixing typo in the unused columns warning message.

Test: Warning message fixed.

Bug: 162316821
Change-Id: I69baa3adf8909a5c28590a18fcd6d5c25d367c39
diff --git a/room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt b/room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
index a10bbb0..2f3afef 100644
--- a/room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
+++ b/room/compiler/src/main/kotlin/androidx/room/processor/ProcessorErrors.kt
@@ -260,7 +260,6 @@
                 the mapping.
                 You can annotate the method with @RewriteQueriesToDropUnusedColumns to direct Room
                 to rewrite your query to avoid fetching unused columns.
-        ""${'"'}.trimIndent()
             """.trim()
         } else {
             ""