Remove pkg-config prefix hack

CMakeLists.txt

@@ -2249,15 +2249,7 @@ if(NOT CMAKE_HOST_WIN32)
 endif()
 if(NOT WINDOWS OR CYGWIN)
 
-  if(VITA)
-    if(DOLCESDK)
-      set(prefix "\${DOLCESDK}/arm-dolce-eabi")
-    else()
-      set(prefix "\${VITASDK}/arm-vita-eabi")
-    endif()
-  else()
-    set(prefix ${CMAKE_INSTALL_PREFIX})
-  endif()
+  set(prefix ${CMAKE_INSTALL_PREFIX})
 
   set(exec_prefix "\${prefix}")
   set(libdir "\${exec_prefix}/lib${LIB_SUFFIX}")