Split SpecifyTypeExplicitly intention into two + refactored them completely

idea/testData/intentions/removeExplicitType/.intention

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.intentions.RemoveExplicitTypeIntention

idea/testData/intentions/specifyType/.intention

@@ -1 +1 @@
-org.jetbrains.kotlin.idea.intentions.SpecifyTypeExplicitlyAction
+org.jetbrains.kotlin.idea.intentions.SpecifyTypeExplicitlyIntention

idea/testData/intentions/specifyType/typeAlreadyProvided.kt

@@ -1 +1,2 @@
+// IS_APPLICABLE: false
 val x<caret> : String = ""

idea/testData/intentions/specifyType/typeAlreadyProvided.kt.after

@@ -1 +0,0 @@
-val x = ""

idea/testData/quickfix/createFromUsage/createClass/typeReference/classGroovyTypeReceiver.before.Main.kt

@@ -1,4 +1,5 @@
 // "Create class 'A'" "false"
 // ACTION: Convert to block body
+// ACTION: Remove explicit type specification
 // ERROR: Unresolved reference: A
 fun foo(): J.<caret>A = throw Throwable("")

idea/testData/quickfix/createFromUsage/createClass/typeReference/enumEntryJavaEnumReceiver.before.Main.kt

@@ -1,5 +1,6 @@
 // "Create enum constant 'A'" "false"
 // ACTION: Convert to block body
+// ACTION: Remove explicit type specification
 // ACTION: Create annotation 'A'
 // ACTION: Create class 'A'
 // ACTION: Create enum 'A'