Update CMakeLists.txt

Author: egorpugin

CMakeLists.txt

@@ -245,7 +245,6 @@ if (NOT CPPAN_BUILD)
     export(TARGETS libtesseract FILE ${CMAKE_BINARY_DIR}/TesseractTargets.cmake)
 else()
     target_link_libraries       (libtesseract pvt.cppan.demo.danbloomberg.leptonica)
-    add_dependencies            (libtesseract cppan)
     file(WRITE ${CMAKE_BINARY_DIR}/TesseractTargets.cmake "include(${CMAKE_BINARY_DIR}/cppan.cmake)\n")
     export(TARGETS libtesseract APPEND FILE ${CMAKE_BINARY_DIR}/TesseractTargets.cmake)
 endif()