Build: Removed cmake from the PATH to address dll issues

Python interpreter was seemingly picking up cmake's versions of the MSVC*
libraries, causing problems.

scripts/win32-build.cmd

@@ -79,7 +79,7 @@ cd /D %ov_build_dir%
 echo Generating makefiles for %VSCMake% using %BuildType% config.
 echo Building to %ov_build_dir% ...
 
-cmake %ov_script_dir%\.. -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=%BuildType% -DCMAKE_INSTALL_PREFIX=%ov_install_dir%
+%ov_script_dir%\..\dependencies\cmake\bin\cmake %ov_script_dir%\.. -G"NMake Makefiles" -DCMAKE_BUILD_TYPE=%BuildType% -DCMAKE_INSTALL_PREFIX=%ov_install_dir%
 IF NOT "!ERRORLEVEL!" == "0" goto terminate_error
 
 echo.

scripts/win32-generate-vc-proj.cmd

@@ -20,7 +20,7 @@ cd /D %ov_build_dir%
 
 echo Generating %VCSMake% project files to %ov_build_dir% ...
 
-cmake %ov_script_dir%\.. -G"%VSCMake%" -DCMAKE_INSTALL_PREFIX=%ov_install_dir%
+%ov_script_dir%\..\dependencies\cmake\bin\cmake %ov_script_dir%\.. -G"%VSCMake%" -DCMAKE_INSTALL_PREFIX=%ov_install_dir%
 IF NOT "!ERRORLEVEL!" == "0" goto terminate_error
 
 echo.

scripts/win32-install_dependencies.nsi

@@ -156,10 +156,9 @@ Section "CMake"
 no_need_to_download_cmake:
 	ZipDLL::extractall "arch\cmake-2.8.7-win32-x86-ov2.zip" ""
 
-	FileOpen $0 "$EXEDIR\win32-dependencies.cmd" a
-	FileSeek $0 0 END
-	FileWrite $0 "SET PATH=$INSTDIR\cmake\bin;%PATH%$\r$\n"
-	FileClose $0
+	; Note: Do NOT put cmake bin on the PATH, as/if it contains MSVC* libraries. These have been
+	; observed to have been picked up by third-party software like the python interpreter 
+	; and caused hard-to-trace manifest errors.
 
 SectionEnd