Remove empty settings.

test/libsolidity/semanticTests/variables/mapping_local_assignment.sol

@@ -11,6 +11,5 @@ contract test {
         return (m1[1], m1[2], m2[1], m2[2]);
     }
 }
-// ====
 // ----
 // f() -> 42, 0, 0, 21

test/libsolidity/semanticTests/variables/mapping_local_compound_assignment.sol

@@ -10,6 +10,5 @@ contract test {
         return (m1[1], m1[2], m2[1], m2[2]);
     }
 }
-// ====
 // ----
 // f() -> 42, 0, 0, 21

test/libsolidity/semanticTests/variables/mapping_local_tuple_assignment.sol

@@ -12,6 +12,5 @@ contract test {
         return (m1[1], m1[2], m2[1], m2[2]);
     }
 }
-// ====
 // ----
 // f() -> 42, 0, 0, 21

test/libsolidity/semanticTests/variables/public_state_overridding_mapping_to_dynamic_struct.sol

@@ -18,7 +18,6 @@ contract X is A
 }
 
 
-// ====
 // ----
 // test(uint256): 0 -> 0, 64, 0
 // test(uint256): 42 -> 0, 64, 0

test/libsolidity/semanticTests/variables/storing_invalid_boolean.sol

@@ -25,7 +25,6 @@ contract C {
         return 1;
     }
 }
-// ====
 // ----
 // set() -> 1
 // perm() -> true