Remove duplicate empty lines from all source files.

There is no reason for them to be in our sources (except for Python, where
their presence is mandated by PEP8).

LICENSE-THIRD-PARTY

@@ -1424,7 +1424,6 @@ JSON_checker
 Copyright (c) 2002 JSON.org
 All Rights Reserved.
 
-
 Terms of the JSON License:
 ---------------------------------------------------
 
@@ -1436,7 +1435,6 @@ The Software shall be used for Good, not Evil.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-
 Terms of the MIT License:
 --------------------------------------------------------------------
 

include/retdec/demangler/borland_ast/built_in_type.h

@@ -43,5 +43,4 @@ class BuiltInTypeNode : public TypeNode
 }    // demangler
 }    // retdec
 
-
 #endif //RETDEC_BUILT_IN_TYPE_H

include/retdec/demangler/borland_ast/float_type.h

@@ -32,5 +32,4 @@ class FloatTypeNode : public BuiltInTypeNode
 }    // demangler
 }    // retdec
 
-
 #endif //RETDEC_FLOAT_TYPE_H

include/retdec/demangler/borland_ast/node_array.h

@@ -56,5 +56,4 @@ class NodeString : public NodeArray
 }    // demangler
 }    // retdec
 
-
 #endif //RETDEC_NODE_ARRAY_H

include/retdec/demangler/borland_ast/parentheses_node.h

@@ -35,5 +35,4 @@ class ParenthesesNode : public Node
 }	// namespace demangler
 }	// namespace retdec
 
-
 #endif //RETDEC_PARENTHESES_NODE_H

include/retdec/demangler/borland_ast/reference_type.h

@@ -4,7 +4,6 @@
 * @copyright (c) 2019 Avast Software, licensed under the MIT license
 */
 
-
 #ifndef RETDEC_REFERENCE_TYPE_H
 #define RETDEC_REFERENCE_TYPE_H
 

include/retdec/demangler/borland_ast/rreference_type.h

@@ -4,7 +4,6 @@
 * @copyright (c) 2019 Avast Software, licensed under the MIT license
 */
 
-
 #ifndef RETDEC_RREFERENCE_TYPE_H
 #define RETDEC_RREFERENCE_TYPE_H
 

include/retdec/demangler/borland_ast/template_node.h

@@ -4,7 +4,6 @@
 * @copyright (c) 2019 Avast Software, licensed under the MIT license
 */
 
-
 #ifndef RETDEC_TEMPLATE_NODE_H
 #define RETDEC_TEMPLATE_NODE_H
 

include/retdec/demangler/borland_ast/type_node.h

@@ -33,5 +33,4 @@ class TypeNode : public Node
 }    // demangler
 }    // retdec
 
-
 #endif //RETDEC_TYPE_NODE_H

src/ctypesparser/ast_ctypes_parser.cpp

@@ -4,7 +4,6 @@
 * @copyright (c) 2019 Avast Software, licensed under the MIT license
 */
 
-
 #include "retdec/utils/container.h"
 #include "retdec/ctypesparser/ast_ctypes_parser.h"
 

src/demangler/borland_ast/type_node.cpp

@@ -25,7 +25,6 @@ Qualifiers TypeNode::quals()
 	return _quals;
 }
 
-
 }    // borland
 }    // demangler
 }    // retdec

src/demangler/microsoft_demangler_adapter.cpp

@@ -4,7 +4,6 @@
  * @copyright (c) 2018 Avast Software, licensed under the MIT license
  */
 
-
 #include <llvm/Demangle/Demangle.h>
 #include <llvm/Demangle/MicrosoftDemangle.h>
 

src/fileformat/format_factory.cpp

@@ -51,7 +51,6 @@ std::unique_ptr<FileFormat> createFileFormat(
 	}
 }
 
-
 std::unique_ptr<FileFormat> createFileFormat(
 		const std::string &filePath,
 		bool isRaw,

src/fileinfo/file_information/file_information.h

@@ -229,7 +229,6 @@ class FileInformation
 		void setDepsListFailedToLoad(const std::string & );
 		/// @}
 
-
 		/// @name Getters of @a exportTable
 		/// @{
 		std::size_t getNumberOfStoredExports() const;

tests/bin2llvmir/providers/demangler_tests.cpp

@@ -10,7 +10,6 @@
 #include "retdec/ctypes/context.h"
 #include "retdec/ctypes/module.h"
 
-
 using namespace ::testing;
 using namespace llvm;
 

tests/demangler/borland_context_tests.cpp

@@ -138,8 +138,6 @@ TEST_F(BorlandContextTests, NestedNameNodesTests)
 	EXPECT_NE(nn1, nn3);
 }
 
-
-
 TEST_F(BorlandContextTests, ArrayTests)
 {
 	auto i1 = IntegralTypeNode::create(context, "int", false, {false, false});