Fix gcc 4.6 warnings
gcc 4.6 warns when a variable is initialized but isn't used afterwards: vmware/vmware_driver.c:449:18: warning: variable 'vmxPath' set but not used [-Wunused-but-set-variable] This patch fixes these warnings. There are still 2 offending files: - vbox_tmpl.c: the variable is used inside an #ifdef and is assigned several times outside of #ifdef. Fixing the warning would have required wrapping all the assignment inside #ifdef which hurts readability. vbox/vbox_tmpl.c: In function 'vboxAttachDrives': vbox/vbox_tmpl.c:3918:22: warning: variable 'accessMode' set but not used [-Wunused-but-set-variable] - esx_vi_types.generated.c: the name implies it's generated code and I didn't want to dive into the code generator esx/esx_vi_types.generated.c: In function 'esxVI_FileQueryFlags_Free': esx/esx_vi_types.generated.c:1203:3: warning: variable 'item' set but not used [-Wunused-but-set-variable]
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