[Analysis API] Remove test infrastructure for obsolete on-air analysis

analysis/analysis-api/testData/components/scopeProvider/importingScopeContext/errorImport.kt

@@ -1,4 +1,4 @@
 import c.b
 
-val a<caret_onAirContext> = 5
+val a = 5
 

analysis/analysis-api/testData/components/scopeProvider/importingScopeContext/importAlias.kt

@@ -1,7 +1,7 @@
 // FILE: main.kt
 import other.A as AAA
 
-val a<caret_onAirContext> = 5
+val a = 5
 
 // FILE: other/other.kt
 package other

analysis/analysis-api/testData/components/scopeProvider/importingScopeContext/noImports.kt

@@ -1,3 +1,3 @@
 // RENDER_DEFAULT_IMPORTING_SCOPE
 
-val a<caret_onAirContext> = 5
+val a = 5

analysis/analysis-api/testData/components/scopeProvider/importingScopeContext/simpleImport.kt

@@ -1,7 +1,7 @@
 // FILE: main.kt
 import other.A
 
-val a<caret_onAirContext> = 5
+val a = 5
 
 // FILE: other/other.kt
 package other

analysis/analysis-api/testData/components/scopeProvider/importingScopeContext/starImport.kt

@@ -1,7 +1,7 @@
 // FILE: main.kt
 import other.*
 
-val a<caret_onAirContext> = 5
+val a = 5
 
 // FILE: other/other.kt
 package other